Prof. Asher A. Friesem Profile

Prof. Asher A. Friesem

Professor Emeritus at Weizmann Institute of Science

SPIE Involvement:

Author

Publications (52)

Proceedings Article | 3 October 2022 Presentation + Paper

Digitally controlled multimode laser for high-resolution and robust beam shaping

Simon Mahler, Chene Tradonsky, Vishwa Pal, Asher Friesem, Nir Davidson

Proceedings Volume 12218, 1221809 (2022) https://doi.org/10.1117/12.2634968

KEYWORDS: Control systems, Beam shaping, Spatial light modulators, Laser beam propagation, Beam controllers, Spatial filters, Spatial coherence, Optical filters, Digital filtering, Near field

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SPIE Journal Paper | 22 November 2012

Fabrication of high-aspect-ratio resonance domain diffraction gratings in fused silica

Omri Barlev, Michael Golub, Asher Friesem, Diana Mahalu, Menachem Nathan

OE, Vol. 51, Issue 11, 118002, (November 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.11.118002

KEYWORDS: Diffraction gratings, Diffraction, Chromium, Reactive ion etching, Visible radiation, Electron beam lithography, Etching, Silica, Polarization, Dry etching

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Proceedings Article | 7 May 2012 Paper

Recent developments in passive phase locking and coherent combining of lasers

M. Nixon, M. Fridman, E. Ronen, Z. Sacks, N. Davidson, A. Friesem

Proceedings Volume 8381, 83810N (2012) https://doi.org/10.1117/12.920190

KEYWORDS: Fiber lasers, Mode locking, Mirrors, Reflectivity, Laser development, Solid state lasers, Fiber Bragg gratings, Interferometry, Output couplers, Reflection

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Proceedings Article | 22 September 2011 Paper

Fabrication and testing of highly efficient resonance domain diffractive optical elements

Omri Barlev, Michael Golub, Asher Friesem, Diana Mahalu, Menachem Nathan

Proceedings Volume 8169, 81690D (2011) https://doi.org/10.1117/12.898991

KEYWORDS: Diffraction gratings, Diffraction, Etching, Aluminum, Reactive ion etching, Diffractive optical elements, Atomic force microscopy, Photomasks, Geometrical optics, Metals

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Proceedings Article | 26 April 2007 Paper

Intracavity phase element improves laser mode stability

G. Machavariani, N. Davidson, A. Ishaaya, A. Friesem

Proceedings Volume 6346, 63462Z (2007) https://doi.org/10.1117/12.739316

KEYWORDS: Resonators, Laser resonators, Gas lasers, Mirrors, Near field, Modes of laser operation, Carbon monoxide, Chemical elements, Laser stabilization, Reflectivity

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Proceedings Article | 15 September 2006 Paper

Tooth and bone deformation: structure and material properties by ESPI

Paul Zaslansky, Ron Shahar, Meir Barak, Asher Friesem, Steve Weiner

Proceedings Volume 6341, 634109 (2006) https://doi.org/10.1117/12.695264

KEYWORDS: Bone, Teeth, Speckle, Interferometers, Tissues, Speckle pattern, Charge-coupled devices, Interferometry, Glasses, Water

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Proceedings Article | 20 October 2005 Paper

Characterization of resonance domain diffractive optical elements

Michael Golub, Leon Eisen, Asher Friesem, Michael Meyklyar

Proceedings Volume 5965, 596506 (2005) https://doi.org/10.1117/12.625994

KEYWORDS: Diffraction gratings, Diffraction, Photoresist materials, Scanning electron microscopy, Photography, Silica, Glasses, Atomic force microscopy, Electron microscopes, Holography

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Proceedings Article | 7 July 2005 Paper

Two photon fluorescence spectroscopy based on resonant grating waveguide structures

Anisha Thayil K. N., Silvia Soria, Goncal Badenes, Tsvi Katchalski, Asher Friesem

Proceedings Volume 5840, (2005) https://doi.org/10.1117/12.608266

KEYWORDS: Polarization, Waveguides, Luminescence, Signal detection, Molecules, Resonance enhancement, Spectroscopy, Fluorescence spectroscopy, Two photon excitation microscopy, Polymers

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SPIE Journal Paper | 1 March 2005 Open Access

Phase shifting speckle interferometry for determination of strain and Young's modulus of mineralized biological materials: a study of tooth dentin compression in water

Paul Zaslansky, J. Currey, Asher Friesem, S. Weiner

JBO, Vol. 10, Issue 02, 024020, (March 2005) https://doi.org/10.1117/12.10.1117/1.1891505

KEYWORDS: Aluminum, Teeth, Speckle, Charge-coupled devices, Speckle interferometry, Interferometers, Phase shifting, Calibration, Bone, Water

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Proceedings Article | 31 December 2003 Paper

Design and experiments of planar optical light guides for virtual image displays

Ioseph Gurwich, Victor Weiss, Leon Eisen, Michael Meyklyar, Asher Friesem

Proceedings Volume 5182, (2003) https://doi.org/10.1117/12.509330

KEYWORDS: Waveguides, Diffraction gratings, Diffraction, Optical components, Optical design, Mirrors, Holography, Image display, Beam splitters, Head

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Proceedings Article | 19 November 2003 Paper

Optics in flatland

Adolf Lohmann, Avi Pe'er, Dayong Wang, Rafael Piestun, Asher Friesem

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.523667

KEYWORDS: Inspection, Complex systems, Integrated optics, Communication theory, Applied physics, Electrochemical etching, Stomach, Phase velocity, Hubble Space Telescope, Optical design

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Proceedings Article | 14 November 2003 Paper

Transformation of a high-order mode-intensity distribution to a nearly Gaussian beam

G. Machavariani, Nir Davidson, Amiel Ishaaya, Asher Friesem, Erez Hasman

Proceedings Volume 5147, (2003) https://doi.org/10.1117/12.537696

KEYWORDS: Gaussian beams, Mirrors, Beam splitters, Near field, Beam shaping, Phase shifts, Solids, Beam propagation method, Physics, Complex systems

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Proceedings Article | 9 July 2002 Paper

Grating waveguide structures and their application

Asher Friesem, Nirit Dudovich, Tsvi Katchalski, Guy Levy-Yurista

Proceedings Volume 4737, (2002) https://doi.org/10.1117/12.474948

KEYWORDS: Waveguides, Holography, Optical communications, Biosensing

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Proceedings Article | 8 November 2001 Paper

CMOS/LCOS-based image transceiver device: II

Uzi Efron, Isak Davidov, Vladimir Sinelnikov, Asher Friesem

Proceedings Volume 4457, (2001) https://doi.org/10.1117/12.447753

KEYWORDS: LCDs, Imaging systems, Image processing, Silicon, Transceivers, Liquid crystals, Information technology, Liquid crystal on silicon, Data conversion, Electrodes

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SPIE Journal Paper | 1 November 2000

Wigner algebra as a tool for the design of achromatic optical processing systems

Dayong Wang, Avi Pe'er, Adolf Lohmann, Asher Friesem

OE, Vol. 39, Issue 11, (November 2000) https://doi.org/10.1117/12.10.1117/1.1313499

KEYWORDS: Zone plates, Transformers, Fourier transforms, Optical design, Wigner distribution functions, Optical components, Glasses, Optical signal processing, Chromatic aberrations, Imaging systems

Proceedings Article | 9 October 2000 Paper

Theory of the variable coordinate transformation systems in the framework of Wigner algebra

Dayong Wang, Avi Pe'er, Adolf Lohmann, Asher Friesem

Proceedings Volume 4221, (2000) https://doi.org/10.1117/12.402571

KEYWORDS: Wigner distribution functions, Matrices, Optical filters, Cylindrical lenses, Optical components, Spherical lenses, Linear filtering, Integral transforms, Free space, Free space optics

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Proceedings Article | 10 March 2000 Paper

Compact wavelength division multiplexers and demultiplexers

Revital Shechter, Yaakov Amitai, Asher Friesem

Proceedings Volume 3951, (2000) https://doi.org/10.1117/12.379379

KEYWORDS: Diffraction, Diffractive optical elements, Wavelength division multiplexing, Multiplexers, Demultiplexers, Near infrared, Refractive index, Modulation, Visible radiation, Holograms

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SPIE Journal Paper | 1 August 1999

Planar optical dynamic crossbar switch

Silviu Reinhorn, Ram Oron, Yaakov Amitai, Asher Friesem, Klara Vinokur, Nissim Pilossof

OE, Vol. 38, Issue 08, (August 1999) https://doi.org/10.1117/12.10.1117/1.602182

KEYWORDS: Switches, Telescopes, Holography, Optical components, Diffraction, Sensors, Switching, Transmittance, Space telescopes, Spatial light modulators

Proceedings Article | 19 July 1999 Paper

Controlling distortion in an optical imaging system

Dayong Wang, Avi Pe'er, Asher Friesem, Adolf Lohmann

Proceedings Volume 3749, (1999) https://doi.org/10.1117/12.354732

KEYWORDS: Distortion, Image filtering, Imaging systems, Cylindrical lenses, Optical imaging, Lenses, Spherical lenses, Dysprosium, Optical filters, Free space

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Proceedings Article | 19 July 1999 Paper

Design of an achromatic Fourier system by means of Wigner algebra

Adolf Lohmann, Dayong Wang, Avi Pe'er, Asher Friesem

Proceedings Volume 3749, (1999) https://doi.org/10.1117/12.354931

KEYWORDS: Lenses, Geometrical optics, Zone plates, Free space optics, Wigner distribution functions, Spatial frequencies, Complex systems, Applied physics, Fourier optics, Diffraction gratings

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Proceedings Article | 19 July 1999 Paper

Design of an optical correlator with totally incoherent light

Avi Pe'er, Dayong Wang, Asher Friesem, Adolf Lohmann

Proceedings Volume 3749, (1999) https://doi.org/10.1117/12.354896

KEYWORDS: Optical correlators, Optical filters, Light sources, Lenses, Image filtering, Optical design, Light, Image transmission, Spatial filters, Fourier transforms

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Proceedings Article | 24 October 1997 Paper

Correcting asymmetric divergence from diode lasers with planar optical elements

Silviu Reinhorn, Yaakov Amitai, Asher Friesem

Proceedings Volume 3159, (1997) https://doi.org/10.1117/12.279450

KEYWORDS: Semiconductor lasers, Holography, Lenses, Spherical lenses, Prisms, Collimation, Lens design, Optical components, Telescopes, Reflection

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Proceedings Article | 22 September 1997 Paper

Planar optical correlator with coherent light

Silviu Reinhorn, Yaakov Amitai, Asher Friesem, Doron Malka

Proceedings Volume 3110, (1997) https://doi.org/10.1117/12.281388

KEYWORDS: Holography, Lenses, Optical correlators, Optical filters, Linear filtering, Electronic filtering, Spherical lenses, Fourier transforms, Prisms, Glasses

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Proceedings Article | 22 September 1997 Paper

Planar diffractive elements as Bragg volume holograms versus surface relief gratings

Yaakov Amitai, Asher Friesem, Silviu Reinhorn, Revital Shechter

Proceedings Volume 3110, (1997) https://doi.org/10.1117/12.281404

KEYWORDS: Holography, Holographic optical elements, Holograms, Diffraction, Volume holography, Optical design, Polarization, Wave plates, Wavelength division multiplexing, Optical interconnects

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Proceedings Article | 22 September 1997 Paper

Compact updatable optical correlator

Doron Malka, Silviu Reinhorn, Yaakov Amitai, Asher Friesem

Proceedings Volume 3110, (1997) https://doi.org/10.1117/12.281324

KEYWORDS: Optical correlators, Holography, Liquid crystals, Lenses, Optically addressed spatial light modulators, Interfaces, Fourier transforms, Point spread functions, Optical filters, Target detection

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Proceedings Article | 30 September 1996 Paper

Control of grating anomalies in photoactive polymers

Victor Weiss, Asher Friesem, Eliahu Millul

Proceedings Volume 2851, (1996) https://doi.org/10.1117/12.251824

KEYWORDS: Polymers, Holography, Photopolymers, Refractive index, Coating, Modulation, Holograms, Magnesium, Diffraction, Photonics

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SPIE Journal Paper | 1 September 1996

Multilevel diffractive elements for generalized wavefront shaping

Yochay Danziger, Erez Hasman, Asher Friesem, Adolf Lohmann

OE, Vol. 35, Issue 09, (September 1996) https://doi.org/10.1117/12.10.1117/1.600859

KEYWORDS: Diffractive optical elements, Diffraction, Modulation, Teeth, Wavefronts, Chemical elements, Photomasks, Optical components, Diffraction gratings, Optical engineering

Proceedings Article | 22 April 1996 Paper

Photopolymeric holographic recording media: in-situ and real-time characterization

Victor Weiss, Eliahu Millul, Asher Friesem

Proceedings Volume 2688, (1996) https://doi.org/10.1117/12.238542

KEYWORDS: Holography, Photopolymers, Refractive index, Modulation, Polymerization, Polymers, Coating, Diffraction, Holograms, Glasses

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Proceedings Article | 6 June 1995 Paper

Updatable filters for correlation with incoherent light

Shahar Gorodeisky, Asher Friesem

Proceedings Volume 2426, (1995) https://doi.org/10.1117/12.211201

KEYWORDS: Point spread functions, Optical filters, Spatial light modulators, CRTs, Optical correlators, Image filtering, Phase shift keying, Phase modulation, Interfaces, Liquid crystals

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Proceedings Article | 6 June 1995 Paper

Design of planar optical interconnects

E. Socol, Yaakov Amitai, Asher Friesem

Proceedings Volume 2426, (1995) https://doi.org/10.1117/12.211222

KEYWORDS: Diffraction, Holograms, Chemical elements, Wave propagation, Optical design, Holography, Holographic optical elements, Optical interconnects, Refractive index, Diffraction gratings

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Proceedings Article | 6 June 1995 Paper

Resonance phenomena in grating/waveguide structures

A. Sharon, David Rosenblatt, Asher Friesem, Hans-Georg Weber, Herbert Engel, Ralf Steingrueber

Proceedings Volume 2426, (1995) https://doi.org/10.1117/12.211220

KEYWORDS: Waveguides, Dielectrics, Modulation, Dielectric polarization, Waveguide modes, Diffraction gratings, Refraction, Sensors, Maxwell's equations, Reflectivity

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Proceedings Article | 6 June 1995 Paper

Exact Fourier transformation with substrate mode holographic elements

Silviu Reinhorn, Shahar Gorodeisky, Yaakov Amitai, Asher Friesem

Proceedings Volume 2426, (1995) https://doi.org/10.1117/12.211200

KEYWORDS: Holography, Fourier transforms, Lenses, Transparency, Glasses, Charge-coupled devices, Spherical lenses, Wavefronts, Optical design, Data processing

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Proceedings Article | 20 April 1995 Paper

Planar optical configurations for imaging and data processing

Asher Friesem, Silviu Reinhorn, Yaakov Amitai, Revital Shechter

Proceedings Volume 2404, (1995) https://doi.org/10.1117/12.207471

KEYWORDS: Holography, Holographic optical elements, Holograms, Data processing, Spherical lenses, Image processing, Fourier transforms, Optical design, Optical imaging, Optical components

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Proceedings Article | 17 June 1994 Paper

Achromatic diffractive fan-out systems

Markus Schwab, Norbert Lindlein, Johannes Schwider, Yaakov Amitai, Asher Friesem, Silviu Reinhorn

Proceedings Volume 2152, (1994) https://doi.org/10.1117/12.178071

KEYWORDS: Lenses, Diffractive optical elements, Diffraction, Microlens, Wavefronts, Fluctuations and noise, Diffraction gratings, Optical components, Optical design, Contact lenses

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SPIE Journal Paper | 1 March 1994

Filter multiplexing for correlators by means of incoherent light

Shahar Gorodeisky, Asher Friesem

OE, Vol. 33, Issue 03, (March 1994) https://doi.org/10.1117/12.10.1117/12.157659

KEYWORDS: Optical correlators, Optical filters, Composites, Holography, Computer simulations, Image filtering, Transmittance, Multiplexing, Lithium, Point spread functions

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Proceedings Article | 13 August 1993 Paper

Design of compact Fourier transform lenses using substrate mode holographic elements

Yaakov Amitai, Silviu Reinhorn, M. Kroch, Asher Friesem

Proceedings Volume 1972, (1993) https://doi.org/10.1117/12.151098

KEYWORDS: Holograms, Holography, Optical design, Fourier transforms, Optical engineering, Lenses, Spatial frequencies, Monochromatic aberrations, Diffraction, Colorimetry

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Proceedings Article | 13 August 1993 Paper

Optical recording in the mid-IR in photochromic polymers

Victor Weiss, Asher Friesem, Valeri Krongauz

Proceedings Volume 1972, (1993) https://doi.org/10.1117/12.151088

KEYWORDS: Polymers, Carbon dioxide lasers, Mid-IR, Absorbance, Optical recording, Optical engineering, Image resolution, Absorption, Molecules, Chemical reactions

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Proceedings Article | 2 March 1993 Paper

Holographic gratings recorded by photodeposition of inorganic colloids

Victor Weiss, A. Peled, Asher Friesem

Proceedings Volume 1732, (1993) https://doi.org/10.1117/12.140391

KEYWORDS: Holography, Spatial frequencies, Particles, Modulation transfer functions, Selenium, Diffraction gratings, Diffraction, Modulation, Optical resolution, Diffusion

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SPIE Journal Paper | 1 March 1992

Holographic lenses for performing complete Fourier transformations

R. Blank, Asher Friesem

OE, Vol. 31, Issue 03, (March 1992) https://doi.org/10.1117/12.10.1117/12.56093

KEYWORDS: Holography, Optical filters, Optical correlators, Fourier transforms, Transparency, Spatial frequencies, Wavefronts, Holograms, Computer simulations, Wave propagation

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SPIE Journal Paper | 1 February 1992

Multifunctional holographic elements for surface measurements

Erez Hasman, Nir Davidson, Asher Friesem

OE, Vol. 31, Issue 02, (February 1992) https://doi.org/10.1117/12.10.1117/12.56078

KEYWORDS: Sensors, Signal detection, Spherical lenses, Holography, Semiconductor lasers, Imaging systems, Holographic optical elements, Optical components, Laser sources, Diffraction

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SPIE Journal Paper | 1 January 1992

Holographic recording by photodeposition techniques

Aaron Peled, Victor Weiss, David Rosenblatt, Asher Friesem

OE, Vol. 31, Issue 01, (January 1992) https://doi.org/10.1117/12.10.1117/12.56042

KEYWORDS: Holography, Diffraction gratings, Thin films, Holograms, Photography, Modulation, Diffraction, Optical lithography, Selenium, Thin film deposition

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