Dr. Boris Apter Profile

Dr. Boris Apter

at Holon Institute of Technology

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 1 April 2020 Presentation + Paper

Fluorescence waveguiding in amyloidogenic fibers

Boris Apter, Boris Fainberg, Amir Handelman, Igor Lapsker, Antonella Accardo, Carlo Diaferia, Giancarlo Morelli, Gil Rosenman

Proceedings Volume 11360, 113600D (2020) https://doi.org/10.1117/12.2554948

KEYWORDS: Optical fibers, Light wave propagation, Waveguides, Absorption, Photons, Biomedical optics, Polymers, Radio propagation, Laser beam propagation, Geometrical optics

Read Abstract +

Proceedings Article | 25 August 2017 Presentation + Paper

Light-induced "plasmonic" properties of organic materials: surface polaritons, bistability and switching waves

Boris Fainberg, Nikolay Rosanov, Nikolay Veretenov, Boris Apter

Proceedings Volume 10360, 1036003 (2017) https://doi.org/10.1117/12.2272741

KEYWORDS: Bistability, Plasmonics, Polaritons, Organic materials, Switching, Excitons, Thin films

Read Abstract +

Proceedings Article | 27 April 2016 Paper

Optical properties of bio-inspired peptide nanotubes

Amir Handelman, Boris Apter, Gil Rosenman

Proceedings Volume 9895, 989505 (2016) https://doi.org/10.1117/12.2225160

KEYWORDS: Second-harmonic generation, Nanostructures, Optical microscopy, Finite-difference time-domain method, Nonlinear optics, Luminescence, Waveguides, Nanofibers, Optical properties, Nanolithography, Computer simulations, Nonlinear response

Read Abstract +

Proceedings Article | 10 September 2013 Paper

Non-Markovian theory of collective plasmon-molecule excitations in nanojunctions combined with classical electrodynamic simulations

Alexander White, Michael Galperin, Boris Apter, Boris Fainberg

Proceedings Volume 8827, 88270C (2013) https://doi.org/10.1117/12.2023581

KEYWORDS: Plasmonics, Metals, Plasmons, Molecules, Excitons, Molecular interactions, Quantum physics, Electrodynamics, Absorption, Surface plasmons

Read Abstract +

Proceedings Article | 2 September 2009 Paper

Fast surface plasmon-polariton-based optical phase modulator

O. Guilatt, B. Apter, U. Efron

Proceedings Volume 7395, 73952B (2009) https://doi.org/10.1117/12.825674

KEYWORDS: Phase shift keying, Spiral phase plates, Modulation, Refractive index, Modulators, Phase modulation, Dielectrics, Spatial light modulators, Absorption, Electro optics

Read Abstract +

Proceedings Article | 28 August 2009 Paper

Design of integrated eye tracker-display device for head mounted systems

Y. David, B. Apter, N. Thirer, I. Baal-Zedaka, U. Efron

Proceedings Volume 7419, 741910 (2009) https://doi.org/10.1117/12.826316

KEYWORDS: Eye, Image processing, Near infrared, LCDs, Imaging systems, Electrodes, Head-mounted displays, Liquid crystal on silicon, Retina, Control systems

Read Abstract +

Proceedings Article | 20 August 2009 Paper

Study of LSPR-enhanced absorption for solar cell applications: preliminary results

O. Guilatt, B. Apter, U. Efron

Proceedings Volume 7411, 74110M (2009) https://doi.org/10.1117/12.825679

KEYWORDS: Absorption, Silicon, Silica, Silver, Solar cells, Plasmonics, Resonance enhancement, Finite-difference time-domain method, Surface plasmons, Interfaces

Read Abstract +

Proceedings Article | 12 September 2007 Paper

Computer simulation of liquid crystal spatial light modulator based on surface plasmon resonance

P. Kogan, B. Apter, I. Baal-Zedaka, U. Efron

Proceedings Volume 6654, 66540N (2007) https://doi.org/10.1117/12.732989

KEYWORDS: Metals, Surface plasmons, Refractive index, Spatial light modulators, Liquid crystals, Spatial resolution, Modulation, Dielectrics, Silver, Finite-difference time-domain method

Read Abstract +

Spatial resolution is an important performance characteristic of spatial light modulators (SLM). This parameter depends on the physical properties of the electro-optical material, as well as on the design features of the SLM. One of the key factors affecting the spatial resolution of liquid crystal (LC)-based SLM is the fringing field effect. This effect can be reduced in thin LC cells with corresponding reduction in the electro-optical response. A strong electro-optic response in thin LC layer can be attained using the Surface Plasmon Resonance (SPR) phenomenon. While SPR-based LC SLMs were already demonstrated about 15 years ago, their development has been hampered by the fact that these devices are expected to have a relatively low resolution, due to the finite propagation length (several tens of micrometers) of the surface plasmons (SP). This study is aimed at improving the spatial resolution of the SPR-SLM by optimizing the metal-dielectric structure of the device. In particular, a small-scale patterning of the metal layer supporting the propagation of SPs is considered a possible solution for reducing the spatial blurring associated with long propagation length of SPs. Detailed computer simulations of the spatial resolution of the SPR-based LC SLM structure have been carried out using both the rigorous coupled wave analysis (RCWA) and the finite difference time domain (FDTD) method. These simulations were performed for an SLM structure based on the well-known prism-type, Kretschmann excitation configuration. The SLM performance for various spatial resolutions was simulated by introducing a dielectric layer with periodically modulated refractive index. The RCWA technique was used for an initial estimate of the SP excitation angle and the optimal thickness of the silver layer supporting the SP propagation. The FDTD method was used for detailed analysis of near and far field spatial distribution of the modulated light. The results of this study showing improved resolution LC-SP-SLM are presented here.r

Proceedings Article | 15 September 2006 Paper

Recent studies in LC devices and technology

U. Efron, B. Apter, R. Israeli, I. David, I. Baal-Zedaka

Proceedings Volume 6332, 63320K (2006) https://doi.org/10.1117/12.680995

KEYWORDS: Liquid crystals, Electrodes, Diffraction, Electro optics, Reflectivity, Refractive index, LCDs, Modulation, Phase modulation, Diffraction gratings

Read Abstract +

Proceedings Article | 6 September 2006 Paper

Low vision goggles: optical design studies

Ofer Levy, Boris Apter, Uzi Efron

Proceedings Volume 6289, 62890I (2006) https://doi.org/10.1117/12.680941

KEYWORDS: Goggles, Optical design, Eye, Beam splitters, Modulation transfer functions, Mirrors, Imaging systems, Monochromatic aberrations, Visualization, Video

Read Abstract +

Proceedings Article | 13 September 2005 Paper

Electro-optical wide-angle beam deflection based on transversal-field-induced refractive index inhomogeneity in a liquid crystal layer

Boris Apter, Eldad Bahat-Treidel, Uzi Efron

Proceedings Volume 5892, 58921B (2005) https://doi.org/10.1117/12.618239

KEYWORDS: Liquid crystals, Electrodes, Refractive index, Glasses, Ray tracing, CCD cameras, Collimators, Electro optics, Far-field diffraction, Diffraction

Read Abstract +

Proceedings Article | 30 August 2005 Paper

Studies of fringing field effects in liquid crystal beam-steering devices

Uzi Efron, Boris Apter, Eldad Bahat-Treidel

Proceedings Volume 5936, 59360P (2005) https://doi.org/10.1117/12.618218

KEYWORDS: Liquid crystals, Diffraction, Computer simulations, Electrodes, Instrument modeling, Diffraction gratings, LCDs, Dielectrics, Performance modeling, Fourier transforms

Read Abstract +

SPIE Journal Paper | 1 May 2005

Continuously controllable, wide-angle liquid crystal beam deflector based on the transversal field effect in a three-electrode cell

Boris Apter, Eldad Bahat-Treidel, Uzi Efron

OE, Vol. 44, Issue 05, 054001, (May 2005) https://doi.org/10.1117/12.10.1117/1.1911125

KEYWORDS: Liquid crystals, Electrodes, Refractive index, Ray tracing, CCD cameras, Optical engineering, Glasses, Birefringence, Diffraction, Computer simulations

Read Abstract +

SPIE Journal Paper | 1 December 2004

Simple method for controlled variation of liquid crystal cell thickness

Eldad Bahat-Treidel, Boris Apter, Uzi Efron

OE, Vol. 43, Issue 12, (December 2004) https://doi.org/10.1117/12.10.1117/1.1810143

KEYWORDS: Liquid crystals, Holons, Photodetectors, Electrical engineering, LCDs, Optical alignment, Birefringence, Sensors, Polarizers, Fiber amplifiers

Read Abstract +

Proceedings Article | 8 November 2001 Paper

LC-based subwavelength diffractive optical element structures for optical cross-connect applications

Boris Apter, Shy Acco, Uzi Efron

Proceedings Volume 4457, (2001) https://doi.org/10.1117/12.447757

KEYWORDS: Liquid crystals, Diffraction, Diffraction gratings, Metals, Refractive index, Electrodes, Reflectivity, Phase shift keying, Phase modulation, Binary data

Read Abstract +

Proceedings Article | 30 March 2001 Paper

LC-beam steering device based on subwavelength diffractive optical element structure

Boris Apter, Eli Schwartz, Uzi Efron

Proceedings Volume 4294, (2001) https://doi.org/10.1117/12.420778

KEYWORDS: Liquid crystals, Diffraction gratings, Diffraction, Glasses, Electrodes, Refractive index, Beam steering, Diffractive optical elements, Phase modulation, Fabry–Perot interferometers

Read Abstract +

Showing 5 of 16 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years