Dr. David D. Smith Profile

Dr. David D. Smith

Research Scientist

SPIE Involvement:

Conference Program Committee | Author

Publications (18)

Proceedings Article | 23 August 2024 Poster + Paper

Impact of near-angle scatter on exo-Earth coronagraphy

H. Philip Stahl, David Smith, Bijan Nemati

Proceedings Volume 13092, 1309265 (2024) https://doi.org/10.1117/12.3021201

KEYWORDS: Optical surfaces, Coronagraphy, Mirrors, Bidirectional reflectance transmission function, Spatial frequencies, Mirror surfaces, Stars, Point spread functions, Wavefronts, Surface finishing

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Proceedings Article | 22 August 2024 Poster

Development of thin gold release layer for fabrication of high-resolution full-shell x-ray optics

Danielle Gurgew, Srikanth Panini Singam, David Smith, David Banks

Proceedings Volume 13093, 130935I (2024) https://doi.org/10.1117/12.3020805

SPIE Journal Paper | 16 July 2024 Open Access

Optimizing the electroforming process for full-shell X-ray optics

Panini Singam, Chet Speegle, Amy Meekham, Jeffery Kolodziejczak, David Banks, Wayne Baumgartner, Jessica Gaskin, Stephen Bongiorno, Brian Ramsey, David Smith, Danielle Gurgew, Nicholas Thomas

JATIS, Vol. 10, Issue 03, 034001, (July 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.3.034001

KEYWORDS: X-ray optics, Simulations, Deformation, Electric fields, Plating, Copper, Mirrors, Finite element methods, X-rays, X-ray telescopes

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Proceedings Article | 13 March 2024 Presentation

Superluminal lasers for rotation sensing and search for dark matter

Selim Shahriar, Zifan Zhou, Ruoxi Zhu, Andrew Geraci, Jason Bonacum, Yael Sternfeld, Jacob Scheuer, Tim Kovachy, David Smith, Andrei Derevianko

Proceedings Volume PC12912, PC129120U (2024) https://doi.org/10.1117/12.3012330

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Proceedings Article | 13 March 2024 Presentation

Laser gyroscopes and excess noise near exceptional points

David Smith, Hongrok Chang, Eugeniy Mikhailov, Selim Shahriar

Proceedings Volume PC12912, PC129121P (2024) https://doi.org/10.1117/12.3011739

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Proceedings Article | 5 October 2023 Presentation + Paper

The Marshall 100-meter x-ray beamline

Nicholas Thomas, Wayne Baumgartner, Stephen Bongiorno, Patrick Champey, Stephen Cheney, C. Grant Davis, Jessica Gaskin, Jeffery Kolodziejczak, Panini Singam, David Smith

Proceedings Volume 12679, 126790U (2023) https://doi.org/10.1117/12.2677927

KEYWORDS: X-rays, X-ray telescopes, X-ray optics, X-ray imaging, X-ray astronomy, Calibration, Astronomy, Astronomical telescopes, Analytical research, X-ray sources

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Proceedings Article | 28 September 2023 Presentation

Optical performance of reflectivity control devices for solar sail applications

David Smith, Andrew Heaton, Saba Ramazani, Daniel Tyler, Les Johnson, Charles Bachmann, Dylan Shiltz, Chris Lapszynski, Nayma Nur, Chris Lee, Neset Akozbek, Dana Dement, Samuel Dummer, Brandon Farmer

Proceedings Volume PC12664, PC1266405 (2023) https://doi.org/10.1117/12.2676775

KEYWORDS: Solar sails, Control systems, Bidirectional reflectance transmission function, Solar radiation models, Electro optical modeling, Thin films, Thin film devices, Design and modelling, Thin film coatings, Specular reflections

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Proceedings Article | 9 March 2022 Presentation

Non-Hermitian gyroscopes: Can exceptional points increase sensor precision?

David Smith, Hongrok Chang, Selim Shahriar

Proceedings Volume PC12016, PC1201625 (2022) https://doi.org/10.1117/12.2617242

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Proceedings Article | 5 March 2021 Presentation

Excess noise poses a challenge for exceptional-point and fast-light gyros

David Smith, Hongrok Chang

Proceedings Volume 11700, 117003N (2021) https://doi.org/10.1117/12.2586661

KEYWORDS: Gyroscopes

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Proceedings Article | 21 February 2014 Paper

Fast-light enhancement by polarization mode coupling in a single optical cavity

David Smith, H. Chang, Krishna Myneni, A. Rosenberger

Proceedings Volume 8998, 89980T (2014) https://doi.org/10.1117/12.2047568

KEYWORDS: Polarization, Dispersion, Optical resonators, Signal to noise ratio, Wave plates, Absorption, Liquid crystals, Reflectivity, Superposition, Computer aided design

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Proceedings Article | 6 March 2013 Paper

Dispersion enhancement in atom-cavity and coupled cavity systems

David Smith, Krishna Myneni, H. Chang

Proceedings Volume 8636, 86360F (2013) https://doi.org/10.1117/12.2013488

KEYWORDS: Transmittance, Phase shifts, Absorption, Dispersion, Mirrors, Resonance enhancement, Reflectivity, Solids, Optical resonators, Laser optics

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Proceedings Article | 8 February 2012 Paper

Tuning the sensitivity of an optical cavity with slow and fast light

David Smith, Krishna Myneni, H. Chang, A. Toftul, C. Schambeau, J. A. Odutola, J. C. Diels

Proceedings Volume 8273, 82730T (2012) https://doi.org/10.1117/12.914724

KEYWORDS: Absorption, Fabry–Perot interferometers, Optical resonators, Optical pumping, Resonance enhancement, Doppler effect, Laser beam diagnostics, Gyroscopes, Dispersion, Slow light

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Proceedings Article | 14 February 2007 Paper

Dispersive elements for enhanced-laser gyroscopy and cavity stabilization

David Smith, Hongrok Chang, L. Arissian, J. C. Diels

Proceedings Volume 6452, 645204 (2007) https://doi.org/10.1117/12.698748

KEYWORDS: Modulation, Resonators, Gyroscopes, Optical resonators, Optical filters, Phase shift keying, Chemical species, Phase shifts, Absorption, Chemical elements

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Proceedings Article | 21 September 2005 Paper

Coherence effects in ring laser gyros

David Smith, Hongrok Chang, Jean-Claude Diels

Proceedings Volume 5912, 59120L (2005) https://doi.org/10.1117/12.623874

KEYWORDS: Resonators, Gyroscopes, Absorption, Photons, Laser scattering, Scattering, Slow light, Chemical species, Laser resonators, Pulsed laser operation

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Proceedings Article | 4 April 2005 Paper

Slow and fast light in coupled microresonators

Hongrok Chang, David Smith, Kirk Fuller, John Dimmock, Don Gregory, Donald Frazier

Proceedings Volume 5735, (2005) https://doi.org/10.1117/12.601659

KEYWORDS: Resonators, Dispersion, Slow light, Phase shifts, Transparency, Waveguides, Absorption, Transmittance, Radio propagation, Optical resonators

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Proceedings Article | 25 October 2002 Paper

Enhancement of optical nonlinearities via whispering gallery mode splitting

Hongrok Chang, David Smith, Kirk Fuller

Proceedings Volume 4813, (2002) https://doi.org/10.1117/12.455788

KEYWORDS: Resonators, Phase shifts, Nonlinear optics, Surface plasmons, Signal attenuation, Terahertz radiation, Aerospace engineering, Iterative methods, Biological research, Optical spheres

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Proceedings Article | 28 June 1999 Paper

Transmission measurements of the third-order susceptibility of gold

David Smith, Yongkwon Yoon, Robert Boyd, Curtis Banks, Mark Paley

Proceedings Volume 3793, (1999) https://doi.org/10.1117/12.351400

KEYWORDS: Gold, Composites, Absorption, Metals, Refractive index, Nanoparticles, Thin films, Phase shifts, Nonlinear optics, Dielectrics

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Proceedings Article | 25 August 1998 Paper

Photonic and opto-electronic applications of polydiacetylene films photodeposited from solution and polydiacetylene copolymer networks

Mark Paley, Donald Frazier, David Smith, William Witherow, Hossin Abdeldayem, Daniel Wolfe

Proceedings Volume 3388, (1998) https://doi.org/10.1117/12.319430

KEYWORDS: Polymers, Personal digital assistants, Nonlinear optics, Convection, Optical fibers, Ultraviolet radiation, Particles, Holography, Switching, Absorption

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Polydiacetylenes (PDAs) are attractive materials for both electronic and photonic applications because of their highly conjugated electronic structures. They have been investigated for applications as both 1D conductors and nonlinear optical (NLO) materials. One of the chief limitations to the use of PDAs has been the inability to readily process them into useful forms such as films and fibers. In our laboratory we have developed a novel process for obtaining amorphous films of a PDA derived from 2- methyl-4-nitroaniline using photodeposition with UV light from monomer solutions onto transparent substrates. Photodeposition from solution provides a simple technique for obtaining PDA films in any desired pattern with good optical quality. This technique has been used to produce PDA films that show potential for optical applications such as holographic memory storage and optical limiting, as well as third-order NLO applications such as all-optical refractive index modulation, phase modulation and switching. Additionally, copolymerization of diacetylenes with other monomers such as methacrylates provides a means to obtain materials with good processibility. Such copolymers can be spin cast to form films, or drawn by either melt or solution extrusion into fibers. These films or fibers can then be irradiated with UV to photopolymerize the diacetylene units to form a highly stable cross-linked PDA-copolymer network. If such films are electrically poled while being irradiated, they can achieve the asymmetry necessary for second-order NLO applications such as electro-optic switching. On Earth, formation of PDAs by the above mentioned techniques suffers from defects and inhomogeneities caused by convective flows that can arise during processing. By studying the formation of these materials in the reduced-convection, diffusion- controlled environment of space we hope to better understand the factors that affect their processing, and thereby, their nature and properties. Ultimately it may even be feasibly to conduct space processing of PDAs for technological applications.

Showing 5 of 18 publications

Conference Committee Involvement (15)

Optical Sensing and Precision Metrology

25 January 2025 | San Francisco, California, United States

Quantum Sensing, Imaging, and Precision Metrology III

25 January 2025 | San Francisco, California, United States

Quantum Sensing, Imaging, and Precision Metrology II

27 January 2024 | San Francisco, California, United States

Quantum Sensing, Imaging, and Precision Metrology

28 January 2023 | San Francisco, California, United States

Optical and Quantum Sensing and Precision Metrology II

22 January 2022 | San Francisco, California, United States

Optical and Quantum Sensing and Precision Metrology

6 March 2021 | Online Only, California, United States

Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology II

1 February 2020 | San Francisco, California, United States

Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology

2 February 2019 | San Francisco, California, United States

Steep Dispersion Engineering and Opto-Atomic Precision Metrology XI

29 January 2018 | San Francisco, California, United States

Slow Light, Fast Light, and Opto-Atomic Precision Metrology X

30 January 2017 | San Francisco, California, United States

Slow Light, Fast Light, and Opto-Atomic Precision Metrology IX

15 February 2016 | San Francisco, California, United States

Slow Light, Fast Light, and Opto-Atomic Precision Metrology VIII

8 February 2015 | San Francisco, California, United States

Advances in Slow and Fast Light VII

2 February 2014 | San Francisco, California, United States

Advances in Slow and Fast Light VI

3 February 2013 | San Francisco, California, United States

Operational Characteristics and Crystal Growth of Nonlinear Optical Materials III

31 July 2005 | San Diego, California, United States

Showing 5 of 15 Conference Committees

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