Prof. David L. Andrews Profile

Prof. David L. Andrews

Professor Emeritus

SPIE Involvement:

Conference Chair | Track Chair | Editor | Author | Instructor | Special Event Speaker

Area of Expertise:

quantum electrodynamics , nonlinear optics , molecular energy transfer , light harvesting , optical forces , optical vortices

Profile Summary

David Andrews leads nanophotonics and quantum electrodynamics research at UEA, where he has a Chair. The interests of his group include quantum and nonlinear optics, fundamental photonics, molecular fluorescence and energy transport, optical manipulation and switching, and optical vortices. He has over 400 research papers and 20 books to his name, including a widely adopted textbook on Lasers in Chemistry and, as co-editor and contributor, a volume entitled The Angular Momentum of Light. David was elected a Fellow of the Royal Society of Chemistry in 1988, and of the Institute of Physics in 1999, SPIE in 2005, and OSA in 2015. David has instigated and steered several conferences that are now well established, international meetings, including an annual Complex Light and Optical Forces conference in the States, and the biennial Nanophotonics conference in Europe, both now the largest of their kind. He has held two terms of office as Chair of the Molecular Spectroscopy Group, and he is the 2021 President of SPIE. David enjoys frequent travels, and many other interests including painting and the graphic arts: in addition to landscapes he has produced cover art for several of his books and journal covers.

Publications (104)

Proceedings Article | 4 October 2023 Presentation + Paper

Presentation + Paper

Symmetries and helicity in optical vortices

David Andrews

Proceedings Volume 12647, 126470B (2023) https://doi.org/10.1117/12.2676759

KEYWORDS: Optical vortices, Angular momentum, Spiral phase plates, Polarization, Photons, Molecules, Electromagnetism, Quantum spin

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Proceedings Article | 15 March 2023 Presentation + Paper

Presentation + Paper

Principles of fundamental symmetry in optical vortex interactions

David Andrews

Proceedings Volume 12436, 124360D (2023) https://doi.org/10.1117/12.2647735

KEYWORDS: Polarization, Optical vortices, Spiral phase plates, Quantum processes, Molecular interactions, Quantum amplitude, Molecules, Wavefronts, Chiral materials, Singular optics, Angular momentum, Structured light

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Proceedings Article | 5 March 2021 Presentation

Presentation

Welcome and Introduction to SPIE Conference 11701

Enrique Galvez, Halina Rubinsztein-Dunlop, David Andrews

Proceedings Volume 11701, 1170102 (2021) https://doi.org/10.1117/12.2592192

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Proceedings Article | 5 March 2021 Presentation + Paper

Presentation + Paper

Discrete dipole approximation simulation of optical vortex excited plasmonic properties of a partially capped core-shell nanostructure

Daisuke Tanaka, Shungo Harajiri, David Andrews, Kayn Forbes

Proceedings Volume 11701, 117010Y (2021) https://doi.org/10.1117/12.2583976

KEYWORDS: Plasmonics, Optical vortices, Nanostructures, Optical simulations, Nonlinear optics, Nanoparticles, Metals, Luminescence, Dielectrics, Dielectric polarization

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Proceedings Article | 20 August 2020 Presentation + Paper

Presentation + Paper

Optically induced nanoscale forces: precipitating the separation of immiscible liquids

David Andrews, K. Forbes

Proceedings Volume 11463, 114631R (2020) https://doi.org/10.1117/12.2574384

KEYWORDS: Molecular quantum electrodynamics, Molecules, Liquids, Polarizability, Optical binding, Fluid dynamics, Polarization, Photons, Optical tweezers, Electromagnetism

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Proceedings Article | 1 April 2020 Paper

Paper

Passive laser irradiation as a tool for optical catalysis

Kayn Forbes, David Andrews

Proceedings Volume 11345, 113450G (2020) https://doi.org/10.1117/12.2555047

KEYWORDS: Absorption, Optical binding, Particles, Molecules, Catalysis, Photons, Rayleigh scattering, Optical tweezers, Laser scattering, Optical manipulation

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Proceedings Article | 1 April 2020 Presentation + Paper

Presentation + Paper

Analysis of Förster resonance energy transfer (FRET) in the vicinity of a charged metallic nanosphere via nonlocal optical response method

Champi Abeywickrama, Malin Premaratne, David Andrews

Proceedings Volume 11345, 113451B (2020) https://doi.org/10.1117/12.2554147

KEYWORDS: Fluorescence resonance energy transfer, Metals, Molecules, Copper, Aluminum, Gold, Silver, Plasmonics, Polarizability

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Proceedings Article | 24 February 2020 Presentation + Paper

Presentation + Paper

Conceptualization of the photon for quanta of structured light

David Andrews

Proceedings Volume 11297, 1129702 (2020) https://doi.org/10.1117/12.2550305

KEYWORDS: Spiral phase plates, Structured light, Wavefronts, Optical vortices, Wave propagation, Physics, Visualization, Magnetism, Polarization, Light wave propagation

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Proceedings Article | 1 March 2019 Presentation + Paper

Presentation + Paper

Optical spin-orbit interactions in molecular scattering of twisted light

Kayn Forbes, David Andrews

Proceedings Volume 10935, 109350U (2019) https://doi.org/10.1117/12.2509390

KEYWORDS: Scattering, Light scattering, Laser scattering, Molecules, Raman scattering, Molecular interactions, Polarization, Rayleigh scattering, Physics, Optical vortices, Singular optics, Molecular spectroscopy

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Proceedings Article | 20 September 2018 Open Access

Open Access

Presentation + Paper

Spin-orbit coupling in vortex light: can it be revealed in fundamental electronic transitions?

Kayn Forbes, David Andrews

Proceedings Volume 10732, 1073216 (2018) https://doi.org/10.1117/12.2320985

KEYWORDS: Molecules, Dichroic materials, Absorption, Polarization, Structured light, Optical vortices, Light scattering, Photon polarization, Optical activity

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Proceedings Article | 19 September 2018 Presentation + Paper

Presentation + Paper

Symmetry principles for engaging the orbital angular momentum of structured light

David Andrews

Proceedings Volume 10721, 107210X (2018) https://doi.org/10.1117/12.2320979

KEYWORDS: Magnetism, Polarization, Molecules, Structured light, Molecular interactions, Absorption, Optical vortices, Dichroic materials, Light-matter interactions, Molecular spectroscopy

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SPIE Press Book | 1 August 2018

Introduction to Photon Science and Technology

David Andrews, David Bradshaw

KEYWORDS: Polarization, Quantum communications, Photonics, Photon polarization, Absorption, Quantum physics, Particles, Magnetism, Refractive index, Radio propagation

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Introduction to Photon Science and Technology

Proceedings Article | 4 May 2018 Presentation + Paper

Presentation + Paper

The angular momentum of twisted light in anisotropic media: chiroptical interactions in chiral and achiral materials

Kayn Forbes, David Andrews

Proceedings Volume 10672, 1067210 (2018) https://doi.org/10.1117/12.2305723

KEYWORDS: Molecules, Absorption, Polarization, Photon polarization, Molecular interactions, Dichroic materials, Structured light, Molecular quantum electrodynamics

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Proceedings Article | 22 February 2018 Presentation + Paper

Presentation + Paper

Chiroptical interactions between twisted light and chiral media

Kayn Forbes, David Andrews

Proceedings Volume 10549, 1054915 (2018) https://doi.org/10.1117/12.2290134

KEYWORDS: Molecules, Absorption, Structured light, Polarization, Dichroic materials, Photon polarization, Wavefronts, Molecular interactions, Magnetism, Optical activity, Optical vortices

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Proceedings Article | 6 September 2017 Presentation + Paper

Presentation + Paper

The engagement of optical angular momentum in nanoscale chirality

David Andrews

Proceedings Volume 10357, 103571N (2017) https://doi.org/10.1117/12.2275430

KEYWORDS: Photonics, Optical vortices, Light emitting diodes, Polarization, Dichroic materials, Molecules, Particles, Photons

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Proceedings Article | 29 August 2017 Presentation + Paper

Presentation + Paper

Quantum localization issues in nonlinear frequency conversion and harmonic generation

Kayn Forbes, Jack Ford, David Andrews

Proceedings Volume 10359, 1035908 (2017) https://doi.org/10.1117/12.2269517

KEYWORDS: Harmonic generation, Quantum optics, Quantum electrodynamics, Frequency conversion, Nonlinear frequency conversion, Nonlinear optics, Electrodynamics, Quantum physics, Data conversion

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Proceedings Article | 21 April 2016 Paper

Paper

Quantum theory for the nanoscale propagation of light through stacked thin film layers

Kayn Forbes, Mathew Williams, David Andrews

Proceedings Volume 9884, 988434 (2016) https://doi.org/10.1117/12.2227694

KEYWORDS: Near field optics, Quantum physics, Transmittance, Scattering, Thin films, Quantum optics, Quantum electrodynamics, Reflection, Optical components, Photons, Interfaces, Reflectivity, Polarizability, Sensors

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Proceedings Article | 18 April 2016 Presentation + Paper

Presentation + Paper

On the emergence of Raman signals characterizing multicenter nanoscale interactions

Mathew Williams, David Bradshaw, David Andrews

Proceedings Volume 9884, 98840N (2016) https://doi.org/10.1117/12.2227719

KEYWORDS: Raman spectroscopy, Raman scattering, Nanoparticles, Particles, Quantum electrodynamics, Molecules, Nanophotonics, Scattering, Molecular quantum electrodynamics, Raman spectroscopy, Scattering, Molecular interactions, Chemical analysis, Molecular photonics, Polarization

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Proceedings Article | 4 March 2016 Paper

Paper

Chiral separation and twin-beam photonics

David Bradshaw, David Andrews

Proceedings Volume 9764, 97640W (2016) https://doi.org/10.1117/12.2214926

KEYWORDS: Quantum optics, Singular optics, Nanophotonics, Photonics, Quantum physics, Optical manipulation, Molecules, Molecular interactions, Molecular photonics, Electroluminescence, Photons, Scattering, Particles, Polarizability, Laser scattering, Optical tweezers

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Proceedings Article | 4 March 2016 Paper

Paper

Quantum issues with structured light

Mathew Williams, David Bradshaw, David Andrews

Proceedings Volume 9764, 976407 (2016) https://doi.org/10.1117/12.2214946

KEYWORDS: Quantum optics, Polarization, Quantum physics, Optical vortices, Nanophotonics, Wavefronts, Electromagnetism, Single photon, Singular optics, Spiral phase plates, Structured light, Binary data, Time correlated photon counting, Photon polarization

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Proceedings Article | 9 October 2015 Presentation + Paper

Presentation + Paper

Surface functionalized spherical nanoparticles: an optical assessment of local chirality

Jamie Leeder, Henryk Haniewicz, David Andrews

Proceedings Volume 9545, 954502 (2015) https://doi.org/10.1117/12.2186514

KEYWORDS: Chromophores, Nanoparticles, Sensors, Optical spheres, Spherical lenses, Signal detection, Polarization, Optical testing, Magnetism, Active optics

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SPIE Journal Paper | 17 September 2015 Open Access

Open Access

Special Section Guest Editorial: Complex Light

David Andrews, Enrique Galvez, Jesper Glückstad

OE, Vol. 54, Issue 11, 111301, (September 2015) https://doi.org/10.1117/12.10.1117/1.OE.54.11.111301

KEYWORDS: Spiral phase plates, Polarization, Bessel beams, Optical engineering, Optical vortices, Physics, Astronomy, Wavefronts, Astronomical imaging, Photonics

Proceedings Article | 31 August 2015 Presentation + Paper

Presentation + Paper

Advanced electrodynamic mechanisms for the nanoscale control of light by light

David Andrews, Jamie Leeder, David Bradshaw

Proceedings Volume 9546, 95460O (2015) https://doi.org/10.1117/12.2190191

KEYWORDS: Laser beam diagnostics, Transistors, Electrodynamics, Nonlinear optics, Photons, Ultrafast phenomena, Scattering, Kerr effect, Light scattering, Chemical species

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Proceedings Article | 25 August 2015 Presentation + Paper

Presentation + Paper

Discriminatory effects in the optical binding of chiral nanoparticles

Kayn Forbes, David Bradshaw, David Andrews

Proceedings Volume 9548, 95480M (2015) https://doi.org/10.1117/12.2188147

KEYWORDS: Particles, Optical binding, Nanoparticles, Optical tweezers, Molecules, Radiation effects, Magnetism, Polarizability, Astatine, Quantum optics

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SPIE Press Book | 31 July 2015

New Horizons in Nanoscience and Engineering

KEYWORDS: Polymers, Graphene, Chromophores, Composites, Dielectrics, Resonators, Electro optics, Silicon, Absorption, Solar energy

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New Horizons in Nanoscience and Engineering

Proceedings Article | 14 March 2015 Paper

Paper

A spectroscopic ruler for intermediate-zone FRET measurements

Garth Jones, David Andrews

Proceedings Volume 9361, 93610I (2015) https://doi.org/10.1117/12.2076913

KEYWORDS: Resonance energy transfer, Chromophores, Spectroscopy, Fluorescence resonance energy transfer, Quantum electrodynamics, Energy transfer, Distance measurement, Quantum efficiency, Molecular energy transfer, Molecules

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Proceedings Article | 10 March 2015 Paper

Paper

On the viability of achieving chiral separation through the optical manipulation of molecules

David Andrews, David Bradshaw

Proceedings Volume 9379, 93790Q (2015) https://doi.org/10.1117/12.2076041

KEYWORDS: Molecules, Optical tweezers, Polarization, Magnetism, Molecular lasers, Rayleigh scattering, Liquids, Laser scattering, Scattering, Optical manipulation

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Proceedings Article | 27 February 2015 Paper

Paper

Mechanisms universally permitting hyper-Rayleigh scattering

Mathew Williams, Jack Ford, David Andrews

Proceedings Volume 9347, 934711 (2015) https://doi.org/10.1117/12.2080809

KEYWORDS: Molecules, Hyper Rayleigh scattering, Absorption, Nonlinear optics, Molecular quantum electrodynamics, Magnetism, Light scattering, Harmonic generation, Polarization, Second-harmonic generation

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Proceedings Article | 12 September 2014 Paper

Paper

Medium-dependent resonance energy transfer: a controlling role for three-center upconversion

Jamie Leeder, David Andrews

Proceedings Volume 9162, 91620Q (2014) https://doi.org/10.1117/12.2060842

KEYWORDS: Chromophores, Ions, Resolution enhancement technologies, Crystals, Resonance energy transfer, Energy transfer, Active optics, Upconversion, Electromagnetism, Electrodynamics

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Proceedings Article | 12 September 2014 Paper

Paper

Nanoarrays for the generation of complex optical wave-forms

David Andrews, Mathew Williams, David Bradshaw, Ruifeng Lui, David Phillips, Sonja Franke-Arnold, Miles Padgett

Proceedings Volume 9160, 91601L (2014) https://doi.org/10.1117/12.2060714

KEYWORDS: Spatial light modulators, Spiral phase plates, Wavefronts, Optical vortices, Quantum information, Holography, Excitons, Photodiodes, Holograms, Structured light

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Proceedings Article | 2 May 2014 Paper

Paper

Principles of vortex light generation from electronically excited nanoscale arrays

Mathew Williams, David Bradshaw, David Andrews

Proceedings Volume 9126, 91260F (2014) https://doi.org/10.1117/12.2051419

KEYWORDS: Excitons, Optical vortices, Spiral phase plates, Polarization, Optical components, Chromophores, Tin, Dielectric polarization, Computer simulations, Structured light

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Proceedings Article | 2 May 2014 Paper

Paper

Sculpting optical energy landscapes for multi-particle nanoscale assembly

David Bradshaw, Kayn Forbes, David Andrews

Proceedings Volume 9126, 91260P (2014) https://doi.org/10.1117/12.2051207

KEYWORDS: Particles, Optical binding, Nanoparticles, Spherical lenses, Polarizability, Polarization, Optical tweezers, Quantum electrodynamics, Nanolithography, Atmospheric particles

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Proceedings Article | 2 May 2014 Paper

Paper

Designing media for the local control of nanoscale absorption, transmission, and energy transfer

Jamie Leeder, Matt Coles, Jack Ford, David Andrews

Proceedings Volume 9126, 912615 (2014) https://doi.org/10.1117/12.2051222

KEYWORDS: Absorption, Chromophores, Scattering, Resolution enhancement technologies, Energy transfer, Molecular interactions, Polarizability, Lead, Molecules, Light scattering

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Interactions between light and molecular matter featuring photon absorption are commonly associated with excitation of individual chromophores. Subsequent relaxation is achieved through numerous mechanisms, such as scattering and energy transfer to neighbouring chromophores. The efficiency of such processes depends on many factors, including the intensity and wavelength of the optical input, the absorption cross-section of the molecule and the relative orientation of molecular components. New photonic materials are developed on the principle that such factors are controllable, duly tailoring the system to suit new technological applications. The parameters that determine the linear response in multicomponent materials are typically assessed within the theoretical framework of classical optics. However, with improved interest and capability in fabricating nanoscale structures (especially those that exhibit quantum effects), it is becoming increasingly relevant to develop theory that more faithfully represents how individual photons engage with matter. In such constructs, the interaction of materials with optical waves and photons is highly dependent on local molecular environment, therefore surrounding structures and ancillary species exert forms of influence on the photophysical processes inherent within dielectric media. At optical wavelengths where the secondary structure displays little intrinsic optical absorption, the role of such components is often interpreted as modifying the input through a corrective local index of refraction. Although expedient in the discussion of bulk properties of a macroscopic medium, it is reasonably supposed at a local chromophore-photon level that optical mechanisms operate in a different fashion. Using a fully quantized approach to the representation of local molecular electronic structure and electrodynamics, this research develops rigorous theory and a corresponding physical interpretation of how photon absorption, scattering and energy transfer are modified by vicinal, non-absorbing chromophores. The results provide insight into the mechanisms achieved within multi-chromophore systems, highlighting factors that assist in the optimization of optical characteristics in designer materials.

Proceedings Article | 1 May 2014 Paper

Paper

Engaging new dimensions in nonlinear optical spectroscopy using auxiliary beams of light

Jack Ford, David Bradshaw, David Andrews

Proceedings Volume 9136, 91361C (2014) https://doi.org/10.1117/12.2051333

KEYWORDS: Absorption, Molecules, Polarization, Molecular interactions, Spectroscopy, Molecular quantum electrodynamics, Optical spectroscopy, Quantum electrodynamics, Nonlinear optics, Photon polarization

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SPIE Journal Paper | 17 March 2014 Open Access

Open Access

Photon-based and classical descriptions in nanophotonics: a review

David Andrews

JNP, Vol. 8, Issue 01, 081599, (March 2014) https://doi.org/10.1117/12.10.1117/1.JNP.8.081599

KEYWORDS: Nanophotonics, Photon polarization, Near field optics, Polarization, Quantum optics, Particles, Quantum physics, Photonics, Photodetectors, Optical vortices

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Proceedings Article | 25 February 2014 Paper

Paper

Optical vortex mode generation by nanoarrays with a tailored geometry

Mathew Williams, Matt Coles, David Bradshaw, David Andrews

Proceedings Volume 8999, 89990Q (2014) https://doi.org/10.1117/12.2036772

KEYWORDS: Spiral phase plates, Chromophores, Optical vortices, Excitons, Optical components, Electromagnetism, Electromagnetic radiation, Atmospheric particles, Phase shifts, Structured light

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Proceedings Article | 25 February 2014 Paper

Paper

Optical vortices in six-wave mixing

Matt Coles, Mathew Williams, David Andrews

Proceedings Volume 8999, 89990Y (2014) https://doi.org/10.1117/12.2036767

KEYWORDS: Photons, Optical vortices, Polarization, Harmonic generation, Nonlinear optics, Second-harmonic generation, Wave propagation, Wavefronts, Superposition, Upconversion

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Proceedings Article | 1 October 2013 Paper

Paper

The photon: issues of integrity

D. Andrews

Proceedings Volume 8832, 88320B (2013) https://doi.org/10.1117/12.2022213

KEYWORDS: Near field optics, Photonics, Photodetectors, Quantum optics, Photon polarization, Particles, Polarization, Single photon, Absorption, Electromagnetism

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Proceedings Article | 26 September 2013 Paper

Paper

Expanded horizons for generating and exploring optical angular momentum in vortex structures

David Andrews, Matt Coles, Mathew Williams, David Bradshaw

Proceedings Volume 8813, 88130Y (2013) https://doi.org/10.1117/12.2025141

KEYWORDS: Quantum dots, Polarization, Sensors, Optical vortices, Photon polarization, Excitons, Chemical species, Near field optics, Electronic components, Surface plasmons

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Proceedings Article | 13 September 2013 Paper

Paper

On the detection of characteristic optical emission from electronically coupled nanoemitters

David Bradshaw, Jack Ford, David Andrews

Proceedings Volume 8807, 880703 (2013) https://doi.org/10.1117/12.2022006

KEYWORDS: Sensors, Near field optics, Luminescence, Near field, Signal detection, Excitons, Photodetectors, Radio optics, Neodymium, Electrodynamics

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Proceedings Article | 12 September 2013 Paper

Paper

Near-field manipulation of interparticle forces through resonant absorption, optical binding, and dispersion forces

David Bradshaw, David Andrews

Proceedings Volume 8810, 881025 (2013) https://doi.org/10.1117/12.2022008

KEYWORDS: Optical binding, Absorption, Particles, Photons, Nanoparticles, Dispersion, Near field optics, Near field, Optical tweezers, Molecules

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Proceedings Article | 5 March 2013 Paper

Paper

Directions in optical angular momentum

Matt Coles, David Andrews

Proceedings Volume 8637, 863707 (2013) https://doi.org/10.1117/12.2004430

KEYWORDS: Electromagnetism, Polarization, Magnetism, Radio propagation, Quantum optics, Photon polarization, Electromagnetic radiation, Paraxial approximations, Wave propagation, Light wave propagation

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Proceedings Article | 19 November 2012 Open Access

Open Access

Paper

Controlling the localization and migration of optical excitation

David Andrews, David Bradshaw

Proceedings Volume 8542, 854216 (2012) https://doi.org/10.1117/12.979786

KEYWORDS: Luminescence, Energy transfer, Chromophores, Absorption, Molecular energy transfer, Quantum dots, Spectroscopy, Switching, Transistors, Ultrafast phenomena

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In the nanoscale structure of a wide variety of material systems, a close juxtaposition of optically responsive components can lead to the absorption of light by one species producing fluorescence that is clearly attributable to another. The effect is generally evident in systems comprising two or more light-absorbing components (molecules, chromophores or quantum dots) with well-characterised fluorescence bands at similar, differentiable wavelengths. This enables the fluorescence associated with transferred energy to be discriminated against fluorescence from an initially excited component. The fundamental mechanism at the heart of the phenomenon, molecular (resonance) energy transfer, also operates in systems where the product of optical absorption is optical frequency up-conversion. In contrast to random media, structurally organised materials offer the possibility of pre-configured control over the delocalization of energy, through molecular energy transfer following optical excitation. The Förster mechanism that conveys energy between molecular-scale components is strongly sensitive to specific forms of correlation between the involved components, in terms of position, spectroscopic character, and orientation; one key factor is a spectroscopic gradient. Suitably designed materials offer a broad scope for the widespread exploitation of such features, in applications ranging from chemical and biological sensing to the detection of nanoscale motion or molecular conformations. Recently, attention has turned to the prospect of actively controlling the process of energy migration, for example by changing the relative efficiencies of fluorescence and molecular energy transfer. On application of static electric fields or off-resonant laser light – just two of the possibilities – each represents a means for achieving active control with ultrafast response, in suitably configured systems. As the principles are established and the theory is developed, a range of new possibilities for technical application is emerging. For example, applications can be envisaged for new forms of all-optical switching and transistor action. There is also interest in engaging with the interplay of optical excitation and local nanoscale force, exploiting local responses to changes in dispersion forces, accompanying molecular energy transfer.

Proceedings Article | 27 September 2012 Paper

Paper

Electronic energy transport in nanomaterials: influence of host structure

D. Andrews, J. Ford

Proceedings Volume 8459, 84590C (2012) https://doi.org/10.1117/12.930453

KEYWORDS: Chromophores, Resolution enhancement technologies, Molecules, Nanomaterials, Quantum electrodynamics, Luminescence, Energy transfer, Molecular quantum electrodynamics, Molecular interactions, Analytical research

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Proceedings Article | 11 May 2012 Paper

Paper

Failure of the two-level and sum over states methods in nonlinear optics, demonstrated by ab initio methods

Matt Coles, Jamie Peck, Vasily Oganesyan, David Andrews

Proceedings Volume 8434, 84340K (2012) https://doi.org/10.1117/12.920547

KEYWORDS: Nonlinear optics, Polarizability, Failure analysis, Quantum electrodynamics, Complex systems, Molecular quantum electrodynamics, Molecules, Systems modeling, Ions, Frequency conversion

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Proceedings Article | 11 February 2012 Paper

Paper

Optical superchirality and electromagnetic angular momentum

David Andrews, Matt Coles

Proceedings Volume 8274, 827405 (2012) https://doi.org/10.1117/12.906360

KEYWORDS: Polarization, Electromagnetism, Integrated optics, Absorption, Poincaré sphere, Dichroic materials, Quantum electrodynamics, Molecules, Spectroscopy, Magnetism

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Proceedings Article | 9 September 2011 Paper

Paper

Optical binding with anisotropic particles: resolving the forces and torques

Scott Smith, Matt Coles, David Andrews

Proceedings Volume 8097, 80971E (2011) https://doi.org/10.1117/12.892718

KEYWORDS: Particles, Optical binding, Optical tweezers, Radiation effects, Spherical lenses, Polarizability, Quantum electrodynamics, Anisotropy, Polarization, Nanoparticles

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Proceedings Article | 7 September 2011 Paper

Paper

Assessing limitations to the two-level approximation in nonlinear optics for organic chromophores by ab initio methods

Matt Coles, Jamie Peck, Vasily Oganesyan, David Andrews

Proceedings Volume 8113, 81130K (2011) https://doi.org/10.1117/12.894006

KEYWORDS: Photons, Nonlinear optics, Molecules, Chromophores, Organic materials, Systems modeling, Complex systems, Electromagnetism, Harmonic generation, Chemical elements

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Proceedings Article | 22 February 2011 Paper

Paper

Limitations and improvements upon the two-level approximation for molecular nonlinear optics

David Andrews, David Bradshaw, Matt Coles

Proceedings Volume 7917, 79171K (2011) https://doi.org/10.1117/12.873749

KEYWORDS: Nonlinear optics, Systems modeling, Molecules, Frequency conversion, Rayleigh scattering, Molecular quantum electrodynamics, Harmonic generation, Photons, Scattering, Chromophores

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When parametric nonlinear processes are employed in the cause of efficient optical frequency conversion, the media involved are generally subjected to substantially off-resonant input radiation. As such, it is usually only electronic ground states of the conversion material that are significantly populated; higher levels are engaged only in the capacity of virtual states, and it is frequently assumed that just one such state dominates in determining the response. Calculating the nonlinear optical susceptibilities of molecules on this basis, excluding all but the ground and one excited state in a sum-over-states formulation, signifies the adoption of a two-level model, a technique that is widely deployed in the calculation and analysis of nonlinear optical properties. The two-level model offers tractable and physically simple representations of molecular response, including wavelength dependence; it is also the origin of the widely applied 'push-pull' approach to designing optically nonlinear chromophores. By contrast, direct ab initio calculations of optical susceptibility are commonly frustrated by a complete failure to determine such dispersion features. However, caution is required; the two-level model can deliver potentially misleading results if it is applied without regard to the criteria for its validity, especially when molecular excited states are significantly populated. On the basis of a precise, quantum electrodynamical basis for the theory, we explore in detail why there are grounds for questioning the general validity of two-level calculations in nonlinear optics; we assess the criteria for high frequency conversion efficiency and provide a new graphical method to assist in determining the applicability of a two-level model for hyperpolarizability calculations. Lastly, this paper also explores the applicability and detailed conditions for the two-level model for electronically excited molecules, identifying problematic results and providing tractable methods for improving the accuracy of calculations on real molecule-photon interactions.

Proceedings Article | 17 February 2011 Paper

Paper

Structured light, transmission, and scattering

David Andrews

Proceedings Volume 7950, 79500L (2011) https://doi.org/10.1117/12.873878

KEYWORDS: Scattering, Laser scattering, Light scattering, Beam propagation method, Radio propagation, Electromagnetic scattering, Polarization, Quantum electrodynamics, Particles, Structured light

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Proceedings Article | 17 February 2011 Paper

Paper

Optical vortex singularities and atomic circulation in evanescent waves

V. Lembessis, D. Andrews, M. Babiker, S. Al-Awfi

Proceedings Volume 7950, 795007 (2011) https://doi.org/10.1117/12.874926

KEYWORDS: Chemical species, Surface plasmons, Optical vortices, Dielectrics, Plasmonics, Spiral phase plates, Reflection, Sodium, Physics, Optical tweezers

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Proceedings Article | 11 September 2010 Paper

Paper

On the nanoscale transmission of quantum angular momentum

David Andrews

Proceedings Volume 7754, 77540T (2010) https://doi.org/10.1117/12.860584

KEYWORDS: Scattering, Near field optics, Radio propagation, Near field, Quantum information, Light scattering, Quantum dots, Polarizability, Excitons, Quantum optics

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Proceedings Article | 8 September 2010 Paper

Paper

Optical transistor action by nonlinear coupling of stimulated emission and coherent scattering

David Andrews, David Bradshaw

Proceedings Volume 7797, 77970L (2010) https://doi.org/10.1117/12.862258

KEYWORDS: Transistors, Electronics, Laser scattering, Nonlinear optics, Laser beam diagnostics, Scattering, Complex systems, Telecommunications, Laser damage threshold, Signal processing

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Proceedings Article | 19 August 2010 Paper

Paper

Optomechanical control of molecular motors

David Andrews, Luciana Dávila Romero, Jamie Leeder, Matt Coles

Proceedings Volume 7762, 776202 (2010) https://doi.org/10.1117/12.860641

KEYWORDS: Chromophores, Molecules, Molecular lasers, Molecular interactions, Pulsed laser operation, Motion models, Optical micromanipulation, Optical binding, Systems modeling, Absorption

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Proceedings Article | 11 May 2010 Paper

Paper

Controlling nanoscale optical emission with off-resonant laser light

David Andrews, Jamie Leeder, David Bradshaw

Proceedings Volume 7712, 77121R (2010) https://doi.org/10.1117/12.854555

KEYWORDS: Luminescence, Quantum dots, Laser beam diagnostics, Nonlinear optics, Absorption, Dispersion, Near field optics, Polarization, Ultrafast phenomena, Atmospheric particles

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Proceedings Article | 11 May 2010 Paper

Paper

Optical binding between polar particles

Luciana Dávila Romero, Scott Smith, David Andrews

Proceedings Volume 7712, 771219 (2010) https://doi.org/10.1117/12.853719

KEYWORDS: Particles, Optical binding, Light scattering, Scattering, Polarizability, Absorption, Nanoparticles, Polarization, Quantum electrodynamics, Geometrical optics

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Proceedings Article | 26 February 2010 Paper

Paper

The analysis of fluorophore orientation by multiphoton fluorescence microscopy

Jamie Leeder, David Andrews

Proceedings Volume 7569, 756922 (2010) https://doi.org/10.1117/12.841695

KEYWORDS: Luminescence, Polarization, Absorption, Chromophores, Multiphoton fluorescence microscopy, Photons, Multiphoton microscopy, Microscopy, Molecules, Molecular interactions

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Proceedings Article | 25 February 2010 Paper

Paper

Nonlinear optical techniques for improved data capture in fluorescence microscopy and imaging

David Bradshaw, Jamie Leeder, David Andrews

Proceedings Volume 7571, 75710B (2010) https://doi.org/10.1117/12.840946

KEYWORDS: Luminescence, Polarization, Absorption, Photons, Laser beam diagnostics, Multiphoton fluorescence microscopy, Microscopy, Nonlinear optics, Chromophores, Imaging systems

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Proceedings Article | 8 February 2010 Paper

Paper

Geometric configurations and perturbative mechanisms in optical binding

Luciana Dávila Romero, David Andrews

Proceedings Volume 7613, 76130P (2010) https://doi.org/10.1117/12.840696

KEYWORDS: Particles, Optical binding, Quantum electrodynamics, Polarization, Optical fabrication, Absorption, Nanoparticles, Light scattering, Frequency conversion, Scattering

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Proceedings Article | 8 February 2010 Paper

Paper

The electrodynamic mechanisms of optical binding

David Andrews, Luciana Dávila Romero

Proceedings Volume 7613, 761309 (2010) https://doi.org/10.1117/12.840694

KEYWORDS: Particles, Optical binding, Scattering, Rayleigh scattering, Quantum electrodynamics, Optical tweezers, Polarizability, Casimir-Polder interaction, Electrodynamics, Light scattering

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SPIE Journal Paper | 1 February 2010

Multiple light scattering and optomechanical forces

David Andrews, David Bradshaw, Luciana Davila Romero

JNP, Vol. 4, Issue 01, 041565, (February 2010) https://doi.org/10.1117/12.10.1117/1.3332590

KEYWORDS: Scattering, Raman scattering, Rayleigh scattering, Light scattering, Optical binding, Particles, Optical tweezers, Near field optics, Electromagnetic scattering, Quantum electrodynamics

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Proceedings Article | 10 September 2009 Paper

Paper

The irreducible photon

David Andrews

Proceedings Volume 7421, 742109 (2009) https://doi.org/10.1117/12.824551

KEYWORDS: Magnetism, Polarization, Quantum physics, Quantum electrodynamics, Electromagnetic radiation, Photon polarization, Elementary particles, Quantization, Photodetectors, Physics

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Proceedings Article | 20 August 2009 Paper

Paper

Manipulation of optically fabricated particle arrays using broadband radiation

Justo Rodríguez, David Andrews

Proceedings Volume 7400, 74001I (2009) https://doi.org/10.1117/12.825283

KEYWORDS: Particles, Optical binding, Polarization, Optical filters, Optical arrays, Near field, Nanolithography, Optical tweezers, Superposition, Optical manipulation

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Proceedings Article | 20 August 2009 Paper

Paper

Mechanisms for optical binding

David Andrews, Luciana Davila Romero

Proceedings Volume 7400, 74001H (2009) https://doi.org/10.1117/12.827983

KEYWORDS: Particles, Optical binding, Polarizability, Optical tweezers, Dispersion, Laser scattering, Plasmons, Scattering, Light scattering, Nanoparticles

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SPIE Journal Paper | 1 January 2009

All-optical switching based on controlled energy transfer between nanoparticles in film arrays

David Bradshaw, David Andrews

JNP, Vol. 3, Issue 01, 031503, (January 2009) https://doi.org/10.1117/12.10.1117/1.3079796

KEYWORDS: Switching, Energy transfer, Nanoparticles, Particles, Resolution enhancement technologies, Thin films, Optical switching, Photons, Ultrafast phenomena, Absorption

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Proceedings Article | 10 September 2008 Paper

Paper

All-optical switching based on optical control of energy transfer between thin-film layers

David Bradshaw, David Andrews

Proceedings Volume 7041, 70410K (2008) https://doi.org/10.1117/12.796161

KEYWORDS: Near field optics, Switching, Energy transfer, Nanoparticles, Thin films, Particles, Optical switching, Nonlinear optics, Resolution enhancement technologies, Absorption

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Proceedings Article | 4 September 2008 Paper

Paper

Configuring the cancellation of optical near-fields

David Andrews, Justo Rodríguez, Luciana Dávila Romero

Proceedings Volume 7029, 70290C (2008) https://doi.org/10.1117/12.796077

KEYWORDS: Near field optics, Particles, Near field, Radio propagation, Optical binding, Polarization, Wave propagation, Signal detection, Optical tweezers, Molecules

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Proceedings Article | 29 August 2008 Paper

Paper

Optically induced nanoparticle assemblies

David Andrews, Justo Rodríguez, Luciana Dávila Romero

Proceedings Volume 7038, 70380R (2008) https://doi.org/10.1117/12.796090

KEYWORDS: Particles, Optical binding, Nanoparticles, Nanolithography, Polarization, Spherical lenses, Quantum electrodynamics, Optical tweezers, Polarizability, Molecules

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Proceedings Article | 21 August 2008 Paper

Paper

London force and energy transportation between interfacial surfaces

David Bradshaw, Jamie Leeder, Justo Rodríguez, David Andrews

Proceedings Volume 7034, 703408 (2008) https://doi.org/10.1117/12.796083

KEYWORDS: Molecules, Resolution enhancement technologies, Molecular interactions, Dispersion, Interfaces, Molecular quantum electrodynamics, Absorption, Quantum electrodynamics, Spectroscopy, Resonance energy transfer

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SPIE Journal Paper | 1 August 2008

Energy harvesting: a review of the interplay between structure and mechanism

David Andrews

JNP, Vol. 2, Issue 01, 022502, (August 2008) https://doi.org/10.1117/12.10.1117/1.2976172

KEYWORDS: Chromophores, Energy transfer, Solar energy, Energy harvesting, Dendrimers, Photons, Absorption, Resolution enhancement technologies, Energy efficiency, Ions

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Proceedings Article | 23 April 2008 Paper

Paper

Optically induced multi-particle structures: multi-dimensional energy landscapes

Luciana Dávila Romero, Justo Rodríguez, David Andrews

Proceedings Volume 6988, 69880L (2008) https://doi.org/10.1117/12.781144

KEYWORDS: Particles, Optical fabrication, Optical binding, Quantum electrodynamics, Particle systems, Optical tweezers, Spherical lenses, Polarization, Control systems, Prototyping

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Proceedings Article | 23 April 2008 Paper

Paper

The optical control of electronic energy transfer through single and dual auxiliary beams

David Bradshaw, David Andrews

Proceedings Volume 6988, 69880O (2008) https://doi.org/10.1117/12.780248

KEYWORDS: Near field optics, Energy transfer, Particles, Control systems, Resonance energy transfer, Absorption, Atmospheric particles, Resolution enhancement technologies, Switching, Optical switching

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Proceedings Article | 16 April 2008 Paper

Paper

Theory of directed transportation of electronic excitation between single molecules through photonic coupling

D. Andrews, D. Bradshaw

Proceedings Volume 6999, 69990C (2008) https://doi.org/10.1117/12.780573

KEYWORDS: Chromophores, Energy transfer, Near field optics, Molecules, Absorption, Resolution enhancement technologies, Molecular photonics, Resonance energy transfer, Ultrafast phenomena, Near field

Read Abstract +

Proceedings Article | 13 February 2008 Paper

Paper

Optical control and switching of excitation transfer in nano-arrays

David Bradshaw, David Andrews

Proceedings Volume 6875, 68750O (2008) https://doi.org/10.1117/12.764448

KEYWORDS: Molecules, Energy transfer, Switching, Near field optics, Resonance energy transfer, Nonlinear optics, Resolution enhancement technologies, Switches, Pulsed laser operation, Electronics

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Proceedings Article | 25 January 2008 Paper

Paper

Resonance energy transfer and interface forces: quantum electrodynamical analysis

David Bradshaw, Jamie Leeder, Justo Rodríguez, David Andrews

Proceedings Volume 6905, 690503 (2008) https://doi.org/10.1117/12.770253

KEYWORDS: Molecules, Resolution enhancement technologies, Particles, Quantum electrodynamics, Geometrical optics, Near field optics, Resonance energy transfer, Interfaces, Solids, Chromophores

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Proceedings Article | 25 January 2008 Paper

Paper

Optical binding: potential energy landscapes and QED

Justo Rodríguez, Luciana Dávila Romero, David Andrews

Proceedings Volume 6905, 69050H (2008) https://doi.org/10.1117/12.763256

KEYWORDS: Particles, Photons, Optical binding, Molecules, Nanoparticles, Refractive index, Molecular quantum electrodynamics, Spherical lenses, Scattering, Quantum electrodynamics

Read Abstract +

SPIE Journal Paper | 1 January 2008 Open Access

Open Access

Guest Editorial: Nanophotonics in Europe

David Andrews, Tom Mackay

JNP, Vol. 2, Issue 01, 021899, (January 2008) https://doi.org/10.1117/12.10.1117/1.3073680

SPIE Journal Paper | 1 January 2008

Book Review: The Nature of Light: What is a Photon?

David Andrews

JNP, Vol. 2, Issue 01, 020201, (January 2008) https://doi.org/10.1117/12.10.1117/1.3005167

SPIE Journal Paper | 1 October 2007 Open Access

Open Access

Optically induced potential energy landscapes

Justo Rodríguez, Luciana Dávila Romero, David Andrews

JNP, Vol. 1, Issue 01, 019503, (October 2007) https://doi.org/10.1117/12.10.1117/1.2807196

KEYWORDS: Particles, Optical binding, Quantum electrodynamics, Molecules, Molecular quantum electrodynamics, Polarization, Nanoparticles, Spherical lenses, Visualization, Video

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Proceedings Article | 9 February 2007 Paper

Paper

Optical electrostriction

Richard Crisp, David Andrews

Proceedings Volume 6483, 648304 (2007) https://doi.org/10.1117/12.698609

KEYWORDS: Molecules, Particles, Electrostriction, Solids, Polarization, Molecular lasers, Nanoparticles, Polarizability, Chromium, Chemical species

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SPIE Journal Paper | 1 January 2007

Errata: Optically induced potential energy landscapes

Justo Rodriguez, Luciana Dávila Romero, David Andrews

JNP, Vol. 1, Issue 01, 010101, (January 2007) https://doi.org/10.1117/12.10.1117/1.2817932

Proceedings Article | 14 September 2006 Paper

Paper

Near-field propagation in planar nanostructured arrays

David Andrews, Richard Crisp

Proceedings Volume 6320, 63200V (2006) https://doi.org/10.1117/12.678036

KEYWORDS: Chromophores, Energy transfer, Near field optics, Near field, Radio propagation, Resolution enhancement technologies, Resonance energy transfer, Ultrafast phenomena, Electromagnetism, Polarization

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Proceedings Article | 8 September 2006 Paper

Paper

Adjacency matrix formulation of energy flow in dendrimeric polymers

David Andrews, Shaopeng Li

Proceedings Volume 6328, 63280V (2006) https://doi.org/10.1117/12.678038

KEYWORDS: Chromophores, Dendrimers, Energy transfer, Polymers, Absorption, Spectroscopy, Matrices, Spherical lenses, Quantum electrodynamics, Molecules

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Proceedings Article | 30 August 2006 Paper

Paper

Optomechanical forces and electrostriction in laser optical materials

David Andrews, Richard Crisp

Proceedings Volume 6326, 63260I (2006) https://doi.org/10.1117/12.678039

KEYWORDS: Molecules, Particles, Electrostriction, Solids, Laser optics, Quantum electrodynamics, Polarization, Optical tweezers, Atmospheric particles, Molecular quantum electrodynamics

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Proceedings Article | 20 April 2006 Paper

Paper

Energy migration in molecular assemblies: the characterisation and differentiation of two-photon mechanisms

David Bradshaw, David Andrews

Proceedings Volume 6195, 61951J (2006) https://doi.org/10.1117/12.662899

KEYWORDS: Absorption, Chromophores, Molecular assembly, Resonance energy transfer, Molecules, Polymers, Dendrimers, Energy transfer, Nanophotonics, Resolution enhancement technologies

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Proceedings Article | 20 April 2006 Paper

Paper

Optical switching in nano-arrays: transistor action through directed energy transfer

Richard Crisp, David Andrews

Proceedings Volume 6195, 61951I (2006) https://doi.org/10.1117/12.662537

KEYWORDS: Energy transfer, Resolution enhancement technologies, Particles, Chromophores, Transistors, Near field optics, Optical switching, Resonance energy transfer, Optical design, Absorption

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Proceedings Article | 9 February 2006 Paper

Paper

Transient optical angular momentum effects and atom trapping in multiple twisted beams

D. Andrews, A. Carter, M. Babiker, M. Al-Amri

Proceedings Volume 6131, 613103 (2006) https://doi.org/10.1117/12.647412

KEYWORDS: Chemical species, Ions, Europium, Magnesium, Beam propagation method, Matrices, Chemical elements, Physics, Molecules, Laser applications

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Proceedings Article | 9 February 2006 Paper

Paper

Optical ordering of nanoparticles trapped by Laguerre-Gaussian laser modes

David Bradshaw, David Andrews

Proceedings Volume 6131, 61310G (2006) https://doi.org/10.1117/12.640919

KEYWORDS: Particles, Nanoparticles, Optical tweezers, Modes of laser operation, Laser energy, Quantum electrodynamics, Polarization, Optical vortices, Laser scattering, Atmospheric particles

Read Abstract +

Proceedings Article | 16 September 2005 Paper

Paper

Directed energy transfer

David Andrews, Richard Crisp

Proceedings Volume 5924, 59240O (2005) https://doi.org/10.1117/12.612260

KEYWORDS: Chromophores, Energy transfer, Dendrimers, Absorption, Resolution enhancement technologies, Energy harvesting, Resonance energy transfer, Luminescence, Antennas, Energy efficiency

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Proceedings Article | 27 August 2005 Paper

Paper

Transmission of quantum dot exciton spin states via resonance energy transfer

Gregory Scholes, David Andrews, Vanessa Huxter, Jeongho Kim, Cathy Wong

Proceedings Volume 5929, 59290H (2005) https://doi.org/10.1117/12.613564

KEYWORDS: Excitons, Quantum dots, Resolution enhancement technologies, Resonance energy transfer, Signal detection, Polarization, Quantum information, Picosecond phenomena, Quantum electrodynamics, Photon polarization

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Proceedings Article | 19 August 2005 Paper

Paper

Nanoparticle manipulation through inter-particle optical forces and torques

David Bradshaw, David Andrews

Proceedings Volume 5930, 59302A (2005) https://doi.org/10.1117/12.612267

KEYWORDS: Particles, Nanoparticles, Optical tweezers, Quantum electrodynamics, Polarization, Photon polarization, Laser scattering, Optical vortices, Spherical lenses, Scattering

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Proceedings Article | 4 August 2005 Paper

Paper

The photon: a virtual reality

David Andrews

Proceedings Volume 5866, (2005) https://doi.org/10.1117/12.611897

KEYWORDS: Energy transfer, Electromagnetism, Radio propagation, Sensors, Magnetism, Quantum electrodynamics, Photon polarization, Virtual reality, States of matter, Polarization

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Proceedings Article | 14 March 2005 Paper

Paper

Optical forces between dielectric nanoparticles in an optical vortex

David Bradshaw, David Andrews

Proceedings Volume 5736, (2005) https://doi.org/10.1117/12.590289

KEYWORDS: Nanoparticles, Dielectrics, Particles, Optical vortices, Quantum electrodynamics, Molecules, Spherical lenses, Molecular quantum electrodynamics, Molecular interactions, Polarizability

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Proceedings Article | 14 March 2005 Paper

Paper

Interaction of Laguerre-Gaussian light with liquid crystals

Luciana Davila Romero, Andrew Carter, Mohamed Babiker, David Andrews

Proceedings Volume 5736, (2005) https://doi.org/10.1117/12.585295

KEYWORDS: Liquid crystals, Optical vortices, Differential equations, Spiral phase plates, Molecules, Paraxial approximations, Glasses, Dielectrics, Molecular interactions, Physics

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Proceedings Article | 14 October 2004 Paper

Paper

Electronic coupling mechanisms and characteristics for optically nonlinear photoactive nanomaterials

David Andrews, David Bradshaw

Proceedings Volume 5510, (2004) https://doi.org/10.1117/12.555986

KEYWORDS: Nonlinear optics, Resolution enhancement technologies, Absorption, Chromophores, Dendrimers, Photons, Excitons, Resonance energy transfer, Nanomaterials, Energy transfer

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Proceedings Article | 8 September 2004 Paper

Paper

Nonlinear energy pooling in nanophotonic materials

David Andrews, David Bradshaw

Proceedings Volume 5464, (2004) https://doi.org/10.1117/12.544970

KEYWORDS: Chromophores, Resolution enhancement technologies, Nonlinear optics, Dendrimers, Absorption, Nanophotonics, Energy transfer, Excitons, Energy harvesting, Nanomaterials

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Proceedings Article | 2 August 2004 Paper

Paper

The interaction of optical vortices with chiral matter

David Andrews, Mohamed Babiker, Andrew Carter, Luciana Davila Romero

Proceedings Volume 5508, (2004) https://doi.org/10.1117/12.556362

KEYWORDS: Magnetism, Optical vortices, Liquid crystals, Molecules, Spiral phase plates, Polarization, Molecular interactions, Spectroscopy, Dichroic materials, Absorption

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Proceedings Article | 10 November 2003 Paper

Paper

Energy transfer in macromolecular arrays

David Andrews, Robert Jenkins

Proceedings Volume 5212, (2003) https://doi.org/10.1117/12.502375

KEYWORDS: Excitons, Energy transfer, Chromophores, Absorption, Molecular quantum electrodynamics, Dendrimers, Resolution enhancement technologies, Photons, Molecular energy transfer, Single photon

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Proceedings Article | 9 July 2003 Paper

Paper

Resonance damping and optical susceptibilities (Critical Review Lecture)

David Andrews, Luciana Davila Romero

Proceedings Volume 5218, (2003) https://doi.org/10.1117/12.502586

KEYWORDS: Electro optics, Polarizability, Nonlinear optics, Electro optical modeling, Quantum electrodynamics, Quantum optics, Photons, Second-harmonic generation, Dispersion, Raman scattering

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Proceedings Article | 1 November 2002 Paper

Paper

Nonlinear spectroscopy with twisted beams

David Andrews, Mohamed Babiker, Colin Bennett, Luciana Davila-Romero

Proceedings Volume 4812, (2002) https://doi.org/10.1117/12.451377

KEYWORDS: Polarization, Second-harmonic generation, Spectroscopy, Sum-frequency generation, Molecules, Photon polarization, Radio propagation, Electromagnetism, Beam propagation method, Nonlinear optics

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Proceedings Article | 24 June 2002 Paper

Paper

Energy harvesting materials

David Andrews

Proceedings Volume 4806, (2002) https://doi.org/10.1117/12.472982

KEYWORDS: Chromophores, Energy transfer, Absorption, Dendrimers, Energy harvesting, Luminescence, Ions, Photons, Photosynthesis, Energy efficiency

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Proceedings Article | 31 October 2001 Paper

Paper

Mixed quartic-harmonic oscillators: a study of the ring puckering vibration of a cyclic amino acid dimer

Robert Withnall, David Andrews, Andrew Mendham, Babur Chowdhry

Proceedings Volume 4469, (2001) https://doi.org/10.1117/12.447379

KEYWORDS: Oscillators, Molecules, Spectroscopy, Raman spectroscopy, Far infrared, Infrared radiation, Radon, Microwave radiation, Chemical species, Calcium

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Proceedings Article | 9 July 2001 Paper

Paper

Nonlinearities in energy harvesting media

David Andrews, Robert Jenkins

Proceedings Volume 4467, (2001) https://doi.org/10.1117/12.432943

KEYWORDS: Energy transfer, Chromophores, Energy harvesting, Excitons, Resolution enhancement technologies, Absorption, Nonlinear optics, Photons, Light harvesting, Molecules

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Proceedings Article | 29 September 2000 Paper

Paper

Second harmonic emission and the optical excitation of small particles

David Andrews, Luciana Davila-Romero

Proceedings Volume 4098, (2000) https://doi.org/10.1117/12.401640

KEYWORDS: Atmospheric particles, Second-harmonic generation, Particles, Harmonic generation, Systems modeling, Coherence (optics), Signal detection, Glasses, Nonlinear optics, Signal processing

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Showing 5 of 104 publications

Proceedings Volume Editor (35)

SPIE Conference Volume | 26 March 2024

Complex Light and Optical Forces XVIII

SPIE Conference Volume | 17 April 2023

Complex Light and Optical Forces XVII

SPIE Conference Volume | 7 June 2022

Nanophotonics IX

SPIE Conference Volume | 27 March 2022

Complex Light and Optical Forces XVI

SPIE Conference Volume | 12 April 2021

Complex Light and Optical Forces XV

Showing 5 of 35 publications

Conference Committee Involvement (83)

Complex Light and Optical Forces XIX

25 January 2025 | San Francisco, California, United States

Nanophotonics X

7 April 2024 | Strasbourg, France

Complex Light and Optical Forces XVIII

29 January 2024 | San Francisco, California, United States

Complex Light and Optical Forces XVII

30 January 2023 | San Francisco, California, United States

Nanophotonics IX

3 April 2022 | Strasbourg, France

Complex Light and Optical Forces XVI

24 January 2022 | San Francisco, California, United States

Complex Light and Optical Forces XV

6 March 2021 | Online Only, California, United States

Nanophotonics VIII

6 April 2020 | Online Only, France

Complex Light and Optical Forces XIV

4 February 2020 | San Francisco, California, United States

Complex Light and Optical Forces XIII

5 February 2019 | San Francisco, California, United States

Nanophotonic Materials XV

22 August 2018 | San Diego, California, United States

Nanophotonics

22 April 2018 | Strasbourg, France

Complex Light and Optical Forces XII

30 January 2018 | San Francisco, California, United States

Nanophotonic Materials XIV

9 August 2017 | San Diego, California, United States

Metamaterials, Metadevices, and Metasystems 2017

6 August 2017 | San Diego, California, United States

Complex Light and Optical Forces XI

31 January 2017 | San Francisco, California, United States

Nanophotonic Materials XIII

30 August 2016 | San Diego, California, United States

Metamaterials, Metadevices, and Metasystems 2016

28 August 2016 | San Diego, California, United States

SPIE Nanoscience + Engineering

28 August 2016 | San Diego, United States

Nanophotonics

3 April 2016 | Brussels, Belgium

Complex Light and Optical Forces X

16 February 2016 | San Francisco, California, United States

SPIE OPTO

13 February 2016 | San Francisco, United States

Nanophotonic Materials XII

12 August 2015 | San Diego, California, United States

Metamaterials, Metadevices, and Metasystems 2015

9 August 2015 | San Diego, California, United States

SPIE Nanoscience + Engineering

9 August 2015 | San Diego, United States

Third International Conference on Optical Angular Momentum

4 August 2015 | New York, United States

Complex Light and Optical Forces IX

11 February 2015 | San Francisco, California, United States

SPIE OPTO

7 February 2015 | San Francisco, United States

Nanophotonic Materials XI

20 August 2014 | San Diego, California, United States

SPIE NanoScience + Engineering

17 August 2014 | San Diego, United States

Metamaterials, Metadevices, and Metasystems 2014

17 August 2014 | San Diego, California, United States

Nanophotonics

13 April 2014 | Brussels, Belgium

Complex Light and Optical Forces VIII

4 February 2014 | San Francisco, California, United States

SPIE OPTO

1 February 2014 | San Francisco, United States

Nanophotonic Materials X

28 August 2013 | San Diego, California, United States

The Nature of Light: What are Photons? V

26 August 2013 | San Diego, California, United States

SPIE NanoScience + Engineering

25 August 2013 | San Diego, United States

Metamaterials: Fundamentals and Applications VI

25 August 2013 | San Diego, California, United States

Complex Light and Optical Forces VII

5 February 2013 | San Francisco, California, United States

SPIE OPTO

2 February 2013 | San Francisco, United States

Nanophotonic Materials IX

15 August 2012 | San Diego, California, United States

Metamaterials: Fundamentals and Applications V

12 August 2012 | San Diego, California, United States

SPIE NanoScience + Engineering

12 August 2012 | San Diego, United States

Nanophotonics

15 April 2012 | Brussels, Belgium

Complex Light and Optical Forces VI

25 January 2012 | San Francisco, California, United States

SPIE OPTO

21 January 2012 | San Francisco, United States

Nanophotonic Materials VIII

24 August 2011 | San Diego, California, United States

Metamaterials: Fundamentals and Applications IV

21 August 2011 | San Diego, California, United States

SPIE NanoScience + Engineering

21 August 2011 | San Diego, United States

Complex Light and Optical Forces V

26 January 2011 | San Francisco, California, United States

Metamaterials: Fundamentals and Applications III

1 August 2010 | San Diego, California, United States

Nanophotonic Materials VII

1 August 2010 | San Diego, California, United States

SPIE NanoScience + Engineering

1 August 2010 | San Diego, United States

Nanophotonics

13 April 2010 | Brussels, Belgium

Complex Light and Optical Forces IV

27 January 2010 | San Francisco, California, United States

Metamaterials: Fundamentals and Applications II

2 August 2009 | San Diego, California, United States

Nanophotonic Materials VI

2 August 2009 | San Diego, California, United States

SPIE NanoScience + Engineering

2 August 2009 | San Diego, United States

Complex Light and Optical Forces III

28 January 2009 | San Jose, California, United States

Metamaterials: Fundamentals and Applications

10 August 2008 | San Diego, California, United States

Nanophotonic Materials V

10 August 2008 | San Diego, California, United States

NanoScience + Engineering

10 August 2008 | San Diego, United States

Nanophotonics

7 April 2008 | Strasbourg, France

Complex Light and Optical Forces II

21 January 2008 | San Jose, California, United States

Photonic Metamaterials

26 August 2007 | San Diego, California, United States

Nanophotonic Materials IV

26 August 2007 | San Diego, California, United States

NanoScience + Engineering

26 August 2007 | San Diego, United States

Complex Light and Optical Forces

24 January 2007 | San Jose, California, United States

Complex Photonic Media

13 August 2006 | San Diego, California, United States

Nanophotonic Materials III

13 August 2006 | San Diego, California, United States

Nanophotonics

3 April 2006 | Strasbourg, France

Nanomanipulation with Light II

23 January 2006 | San Jose, California, United States

Complex Mediums VI: Light and Complexity

31 July 2005 | San Diego, California, United States

Nanophotonic Materials and Systems II

31 July 2005 | San Diego, California, United States

Nanomanipulation with Light

25 January 2005 | San Jose, California, United States

Complex Mediums V: Light and Complexity

4 August 2004 | Denver, Colorado, United States

Nanophotonic Materials

2 August 2004 | Denver, Colorado, United States

Linear and Nonlinear Optics of Nanocrystals

7 August 2003 | San Diego, California, United States

Complex Mediums IV: Beyond Linear Isotropic Dielectrics

4 August 2003 | San Diego, California, United States

Nonlinear Spectroscopy

8 July 2002 | Seattle, WA, United States

Raman Spectroscopy and Light Scattering Technologies in Materials Science

31 July 2001 | San Diego, CA, United States

Raman Spectroscopy and Light Scattering Technologies in Materials Science

3 August 2000 | San Diego, CA, United States

Optical Devices and Diagnostics in Materials Science

1 August 2000 | San Diego, CA, United States

Showing 5 of 83 Conference Committees

Course Instructor

WS506: International Workshop on Nanotechnology of Polymeric Smart Material

This workshop will address polymer-based materials research for smart skin applications including dendrimers for smart materials applications, nanoscale tailoring of electro-optic materials, pi electron organic materials, polymeric nanophotonics and nanoelectronics, carbon nanotubes, and polymeric nanocomposites.

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