Dr. Leonid A. Beresnev Profile

Dr. Leonid A. Beresnev

ARL Researcher at DEVCOM Army Research Lab

SPIE Involvement:

Author

Publications (32)

Proceedings Article | 19 September 2016 Presentation + Paper

Real-time characterization of the spatio-temporal dynamics of deformable mirrors

James Kilpatrick, Adela Apostol, Anatoliy Khizhnya, Vladimir Markov, Leonid Beresnev

Proceedings Volume 9979, 997906 (2016) https://doi.org/10.1117/12.2238431

KEYWORDS: Deformable mirrors, Adaptive optics, Actuators, Mirrors, Acousto-optics, Sensors, Wavefronts, Interferometry, Surface plasmons, Signal processing

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Proceedings Article | 17 September 2014 Paper

Real-time atmospheric imaging and processing with hybrid adaptive optics and hardware accelerated lucky-region fusion (LRF) algorithm

Jony Jiang Liu, Gary Carhart, Leonid Beresnev, Mathieu Aubailly, Christopher Jackson, Garrett Ejzak, Fouad Kiamilev

Proceedings Volume 9202, 920210 (2014) https://doi.org/10.1117/12.2062914

KEYWORDS: Laser range finders, Image processing, Adaptive optics, Image quality, Field programmable gate arrays, Cameras, Imaging systems, Video, Image fusion, Video processing

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Proceedings Article | 22 February 2011 Paper

Experimental study of phase locking of fiber collimators using internal beam-tail interference

Leonid Beresnev, Mikhail Vorontsov, Thomas Weyrauch, Gary Carhart, Svetlana Lachinova, Jiang Liu

Proceedings Volume 7914, 79142Z (2011) https://doi.org/10.1117/12.877300

KEYWORDS: Collimators, Mode locking, Beam splitters, Feedback control, Feedback loops, Wavefronts, Diffractive optical elements, Optical components, Photodiodes, Gaussian beams

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Proceedings Article | 20 August 2008 Paper

Development of adaptive fiber collimators for conformal fiber-based beam projection systems

Leonid Beresnev, Thomas Weyrauch, Mikhail Vorontsov, Ling Liu, Gary Carhart

Proceedings Volume 7090, 709008 (2008) https://doi.org/10.1117/12.800488

KEYWORDS: Actuators, Collimators, Polarization, Mode locking, Prototyping, Structured optical fibers, Projection systems, Interferometers, Metals, Control systems

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Proceedings Article | 25 September 2007 Paper

Adaptive optical antennas: design and evaluation

Thomas Weyrauch, Mikhail Vorontsov, Gary Carhart, Galina Simonova, Leonid Beresnev, Ernst Polnau

Proceedings Volume 6708, 67080R (2007) https://doi.org/10.1117/12.739011

KEYWORDS: Antennas, Adaptive optics, Mirrors, Telecommunications, Atmospheric propagation, Transceivers, Atmospheric optics, Optical antennas, Free space optics, Deformable mirrors

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Proceedings Article | 25 September 2007 Paper

Wavefront correctors based on semi-passive bimorph elements for adaptive optics applications: new designs

L. Beresnev

Proceedings Volume 6708, 67080S (2007) https://doi.org/10.1117/12.739085

KEYWORDS: Deformable mirrors, Mirrors, Actuators, Adaptive optics, Optical components, Reflectivity, Phase shifts, Optical design, Wavefronts, Glasses

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Proceedings Article | 25 September 2007 Paper

Adaptive phase-locked fiber array with wavefront phase tip-tilt compensation using piezoelectric fiber positioners

Ling Liu, Mikhail Vorontsov, Ernst Polnau, Thomas Weyrauch, Leonid Beresnev

Proceedings Volume 6708, 67080K (2007) https://doi.org/10.1117/12.736366

KEYWORDS: Control systems, Wavefronts, Phase modulation, Phase shifts, Mode locking, Charge-coupled devices, Mirrors, Target detection, CCD image sensors, Sensors

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Proceedings Article | 25 September 2007 Paper

Adaptive compensation over a 2.33 km propagation path with retro reflectors under strong scintillation conditions

Ernst Polnau, Mikhail Vorontsov, Gary Carhart, Thomas Weyrauch, Leonid Beresnev

Proceedings Volume 6708, 67080C (2007) https://doi.org/10.1117/12.736310

KEYWORDS: Telescopes, Control systems, Adaptive optics, Reflectors, Signal detection, Sensors, Deformable mirrors, Fiber lasers, Turbulence, Atmospheric propagation

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Proceedings Article | 13 September 2005 Paper

Atmospheric laser communication system with wide-angle tracking and adaptive compensation

G. Carhart, M. Vorontsov, L. Beresnev, P. Paicopolis, F. Beil

Proceedings Volume 5892, 589211 (2005) https://doi.org/10.1117/12.618363

KEYWORDS: Control systems, Mirrors, Transceivers, Telecommunications, Adaptive optics, Laser communications, Laser systems engineering, Optical antennas, Antennas, Computed tomography

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Proceedings Article | 23 August 2005 Paper

Design of adaptive fiber optics collimator for free-space communication laser transceiver

Leonid Beresnev, Mikhail Vorontsov

Proceedings Volume 5895, 58950R (2005) https://doi.org/10.1117/12.618513

KEYWORDS: Actuators, Fiber optics, Laser communications, Fiber optic communications, Collimators, Receivers, Atmospheric propagation, Transmitters, Foam

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Proceedings Article | 18 August 2005 Paper

Design of a combined adaptive optics mirror for fast compensation of low-order aberrations

Leonid Beresnev, Mikhail Vorontsov

Proceedings Volume 5894, 58940G (2005) https://doi.org/10.1117/12.618523

KEYWORDS: Mirrors, Actuators, Atmospheric propagation, Deformable mirrors, Adaptive optics, Monochromatic aberrations, Laser beam propagation, Telescopes, Telecommunications, Atmospheric optics

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Proceedings Article | 18 October 2004 Paper

Atmospheric compensation over a 2.3 km propagation path with a multi-conjugate (piston-MEMS/modal DM) adaptive system

Thomas Weyrauch, Mikhail Vorontsov, Leonid Beresnev, Ling Liu

Proceedings Volume 5552, (2004) https://doi.org/10.1117/12.561998

KEYWORDS: Mirrors, Control systems, Wavefronts, Adaptive optics, Deformable mirrors, Atmospheric propagation, Atmospheric optics, Microelectromechanical systems, Sensors, Actuators

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Proceedings Article | 5 January 2004 Paper

Twisted nematic device fabrication using photoalignment monolayers

Leonid Beresnev, Mu-San Chen, Charles Dulcey, Ranganathan Shashidhar

Proceedings Volume 5213, (2004) https://doi.org/10.1117/12.508644

KEYWORDS: Liquid crystals, Ultraviolet radiation, Polarization, Molecules, Polymers, Polarizers, Capillaries, Polymer thin films, LCDs, Absorption

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Proceedings Article | 11 December 2003 Paper

Wavefront measurements of distant phase-distorting layers along propagation path

Alexander Koryabin, Mikhail Vorontsov, Leonid Beresnev

Proceedings Volume 5162, (2003) https://doi.org/10.1117/12.507117

KEYWORDS: Wavefronts, Nonlinear filtering, Phase shifts, Spatial light modulators, Turbulence, Atmospheric propagation, Beam propagation method, Adaptive optics, Light wave propagation, Wavefront sensors

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Proceedings Article | 6 November 2002 Paper

Dual frequency nematic liquid crystal spatial light modulator with modulation depth 0-2pi and operation rate in hundreds Hz region

Leonid Beresnev, Gary Carhart, David Campbell, John Gonglewski, David Dayton

Proceedings Volume 4825, (2002) https://doi.org/10.1117/12.451969

KEYWORDS: Liquid crystals, Phase shift keying, Modulation, Spatial light modulators, Phase modulation, Analytical research, Anisotropy, Fast packet switching, Wavefronts, Modulators

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Proceedings Article | 1 February 2002 Paper

Sub-millisecond phase contrast wavefront sensor based on an optically addressed ferroelectric liquid crystal spatial light modulator

Leonid Bersnev, Mikhail Vorontsov, John Gowens

Proceedings Volume 4493, (2002) https://doi.org/10.1117/12.454697

KEYWORDS: Optically addressed spatial light modulators, Nonlinear filtering, Sensors, Liquid crystals, Wavefront sensors, Polarization, Ferroelectric LCDs, Phase shifts, Visualization, Distortion

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Proceedings Article | 22 November 2000 Paper

OA LC SLM with high-net optical efficiency for holographic correction of distortions

Vladimir Berenberg, Leonid Beresnev, Aleksander Chaika, Nikolai Feoktistov, Mark Gruneisen, Mikhail Isaev, Elena Konshina, Arkady Onokhov

Proceedings Volume 4124, (2000) https://doi.org/10.1117/12.407509

KEYWORDS: Diffraction, Optically addressed spatial light modulators, Spatial light modulators, Reflectivity, Holography, Photoresistors, Mirrors, Spatial frequencies, Dielectric mirrors, Dielectric polarization

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Proceedings Article | 22 November 2000 Paper

Adaptive wavefront control using a nonlinear Zernike filter

Eric Justh, Mikhail Vorontsov, Gary Carhart, Leonid Beresnev, P. Krishnaprasad

Proceedings Volume 4124, (2000) https://doi.org/10.1117/12.407501

KEYWORDS: Nonlinear filtering, Wavefronts, Optical filters, Complex systems, Spatial light modulators, Phase shifts, Liquid crystals, Wavefront sensors, Digital filtering, Distortion

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Proceedings Article | 22 November 2000 Paper

Advanced phase-contrast techniques for wavefront sensing and adaptive optics

Mikhail Vorontsov, Eric Justh, Leonid Beresnev

Proceedings Volume 4124, (2000) https://doi.org/10.1117/12.407492

KEYWORDS: Wavefront sensors, Nonlinear filtering, Sensors, Wavefronts, Optoelectronics, Phase shift keying, Phase shifts, Optical filters, Liquid crystals, Spatial light modulators

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Proceedings Article | 22 November 2000 Paper

Ferroelectric and antiferroelectric liquid crystals for optical phase modulation

Leonid Beresnev, Thomas Weyrauch, Wolfgang Dultz, Sergei Pikin

Proceedings Volume 4124, (2000) https://doi.org/10.1117/12.407489

KEYWORDS: Refractive index, Molecules, Liquid crystals, Polarization, Phase shift keying, Geometrical optics, Phase modulation, Modulation, Crystal optics, Modulators

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Proceedings Article | 13 July 2000 Paper

Reflective optically addressed FLC SLMs for dynamic holography

Arkady Onokhov, Vladimir Berenberg, Leonid Bersnev, Aleksander Chaika, Nikolai Feoktistov, Mikhail Isaev, Elena Konshina

Proceedings Volume 4046, (2000) https://doi.org/10.1117/12.391948

KEYWORDS: Diffraction, Optically addressed spatial light modulators, Reflectivity, Spatial light modulators, Mirrors, Holography, Spatial frequencies, Photoresistors, Dielectric mirrors, Dielectric polarization

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Proceedings Article | 3 November 1999 Paper

Cancellation of effects of large phase distortions on images by dynamic holograpy using ferroelectric liquid crystal spatial light modulators

Partha Banerjee, Leonid Beresnev, Mikhail Vorontsov

Proceedings Volume 3760, (1999) https://doi.org/10.1117/12.367579

KEYWORDS: Spatial light modulators, Holography, Adaptive optics, Holograms, Ferroelectric LCDs, Imaging systems, Liquid crystals, Coherence imaging, Diffraction, Argon ion lasers

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Proceedings Article | 3 November 1999 Paper

Polarization nonsensitive optical phase modulator based on two DHF (deformed helix ferroelectric) liquid crystal layers

Leonid Beresnev, Wolfgang Dultz, Berndt Hils, Thomas Weyrauch, Wolfgang Haase

Proceedings Volume 3760, (1999) https://doi.org/10.1117/12.367594

KEYWORDS: Refractive index, Modulators, Polarization, Liquid crystals, Phase modulation, Phase shifts, Phase shift keying, Modulation, Anisotropy, Ferroelectric LCDs

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Proceedings Article | 28 April 1999 Paper

10-Gb/s PMD compensation using ferroelectric liquid crystals and several PMD penalty signals

S. Hinz, D. Sandel, M. Yoshida-Dierolf, V. Mirvoda, Reinhold Noe, Thomas Weyrauch, L. Beresnev, Wolfgang Haase

Proceedings Volume 3666, (1999) https://doi.org/10.1117/12.347966

KEYWORDS: Polarization, Ferroelectric LCDs, Picosecond phenomena, Eye, Transmitters, Bandpass filters, Poincaré sphere, Signal attenuation, Receivers, Transformers

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Proceedings Article | 28 December 1998 Paper

Dynamic correction for distortions in imaging optical systems using liquid crystal SLMs

Vladimir Berenberg, Alexey Leshchev, Michael Vasil'ev, Vladimir Venediktov, Arkady Onokhov, Leonid Beresnev

Proceedings Volume 3684, (1998) https://doi.org/10.1117/12.334827

KEYWORDS: Holograms, Spatial light modulators, Liquid crystals, Holography, Telescopes, Diffraction, Optical filters, Imaging systems, Diffraction gratings, Image filtering

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Proceedings Article | 20 October 1998 Paper

Development of the optically addressed spatial light modulators for dynamic holography applications using deformed-helix ferroelectric liquid crystals

Leonid Beresnev, Thomas Weyrauch, Wolfgang Haase, Arkady Onokhov, Mikhail Isaev, Nataliya Ivanova, Elena Konshina, Nikolai Feoktistov, Wolfgang Dultz, Aleksander Chaika, Vladimir Berenberg

Proceedings Volume 3432, (1998) https://doi.org/10.1117/12.327980

KEYWORDS: Optically addressed spatial light modulators, Diffraction, Spatial resolution, Mercury, Mirrors, Photoresistors, Polymers, Ferroelectric LCDs, Silicon carbide, Silicon films

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Proceedings Article | 20 October 1998 Paper

Dynamic correction for distortions in imaging optical systems using liquid crystal SLMs

Vladimir Berenberg, Alexey Leshchev, Michael Vasil'ev, Vladimir Venediktov, Arkady Onokhov, Leonid Beresnev

Proceedings Volume 3432, (1998) https://doi.org/10.1117/12.327976

KEYWORDS: Holograms, Spatial light modulators, Liquid crystals, Holography, Telescopes, Diffraction, Imaging systems, Optical filters, Diffraction gratings, Mirrors

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Proceedings Article | 25 August 1998 Paper

Novel liquid crystal spatial light modulators for adaptive optics and image processing

Arkady Onokhov, Vladimir Berenberg, Aleksander Chaika, Nataliya Ivanova, Mikhail Isaev, Nikolai Feoktistov, Leonid Beresnev, Wolfgang Dultz, Wolfgang Haase

Proceedings Volume 3388, (1998) https://doi.org/10.1117/12.319415

KEYWORDS: Spatial light modulators, Spatial frequencies, Polymers, Liquid crystals, Polarization, Diffraction, Photoresistors, Diffraction gratings, Adaptive optics, Holograms

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Proceedings Article | 25 August 1998 Paper

Polychromatic correction for aberrations in the lenses of telescopic systems using liquid crystal optically addressed spatial light modulators

Vladimir Berenberg, Leonid Beresnev, Wolfgang Haase, Alexey Leshchev, Arkady Onokhov, Leonid Soms, Michael Vasil'ev, Vladimir Venediktov

Proceedings Volume 3388, (1998) https://doi.org/10.1117/12.319414

KEYWORDS: Holograms, Holography, Telescopes, Liquid crystals, Spatial light modulators, Diffraction, Optically addressed spatial light modulators, Diffraction gratings, Optical filters, Lenses

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Proceedings Article | 1 February 1998 Paper

Dielectric and electro-optical investigations on ferroelectric metallomesogens

M. Athanassopoulou, Leonid Beresnev, Y. Galyametdinov, Wolfgang Haase

Proceedings Volume 3318, (1998) https://doi.org/10.1117/12.299955

KEYWORDS: Dielectrics, Copper, Dielectric polarization, Switching, Electro optics, Liquid crystals, Shape memory alloys, Picosecond phenomena, Binary data, Dielectric relaxation

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Proceedings Article | 7 February 1997 Paper

Growth of ferroelectric smectic nuclei in chiral nematic melt

Sergei Pikin, Leonid Beresnev, Wolfgang Haase, Alfredo Strigazzi, A. Sparavigna

Proceedings Volume 2949, (1997) https://doi.org/10.1117/12.266329

KEYWORDS: Interfaces, Polarization, Lead, Crystals, Picosecond phenomena, Ions, Confocal microscopy, Optical microscopy, Solids, Anisotropy

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Proceedings Article | 12 June 1996 Paper

Liquid crystal spatial light modulators for adaptive optics and image processing

Nataliya Ivanova, Arkady Onokhov, Aleksander Chaika, V. Resnichenko, Dmitry Yeskov, Alexander Gromadin, Nikolai Feoktistov, Leonid Beresnev

Proceedings Volume 2754, (1996) https://doi.org/10.1117/12.243141

KEYWORDS: Optically addressed spatial light modulators, Diffraction, Wavefronts, CRTs, Spatial light modulators, Modulators, Spatial resolution, Spatial frequencies, Diffraction gratings, Liquid crystals

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Showing 5 of 32 publications

Conference Committee Involvement (5)

Advanced Wavefront Control: Methods, Devices, and Applications V

29 August 2007 | San Diego, California, United States

Advanced Wavefront Control: Methods, Devices, and Applications IV

14 August 2006 | San Diego, California, United States

Advanced Wavefront Control: Methods, Devices, and Applications III

31 July 2005 | San Diego, California, United States

Advanced Wavefront Control: Methods, Devices, and Applications II

2 August 2004 | Denver, Colorado, United States

Advanced Wavefront Control: Methods, Devices, and Applications

6 August 2003 | San Diego, California, United States

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