Dr. Erez N. Ribak Profile

Dr. Erez N. Ribak

at Technion-Israel Institute of Technology

SPIE Involvement:

Author

Publications (40)

Proceedings Article | 13 December 2020 Poster + Paper

Phasing a sparse telescope

Erez Ribak, B. Levine, E. Behar

Proceedings Volume 11443, 1144342 (2020) https://doi.org/10.1117/12.2559444

KEYWORDS: Telescopes, Space telescopes, Astronomical imaging, Space operations, Metrology, Wavefront sensors, Image sensors, Algorithms, Image segmentation, Actuators

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Proceedings Article | 13 December 2020 Poster + Paper

Shaping apertures and masking

Erez Ribak, B. Levine

Proceedings Volume 11446, 114462Q (2020) https://doi.org/10.1117/12.2559445

KEYWORDS: Optical instrument design, Telescopes, Space telescopes, Chemical elements, Light scattering, Manufacturing, Point spread functions, Error analysis, Optical testing

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Proceedings Article | 13 December 2020 Poster + Paper

Stationary Fourier transform spectrometry

Erez Ribak, Eyal Schwartz

Proceedings Volume 11447, 1144744 (2020) https://doi.org/10.1117/12.2559469

KEYWORDS: Spectroscopy, Fourier transforms, Sensors, Interferometers, Visible radiation, Bandpass filters, Image sensors, Cameras, Exoplanets, Spectral resolution

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Proceedings Article | 13 December 2020 Presentation + Paper

Crossing the diffraction limit with an optical amplifier

Gal Gumpel, Erez Ribak

Proceedings Volume 11451, 1145109 (2020) https://doi.org/10.1117/12.2559434

KEYWORDS: Diffraction, Optical amplifiers, Signal to noise ratio, Solid state lasers, Solid state electronics, Telescopes, Single photon, Photodetectors, Detection and tracking algorithms, Computer simulations

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Proceedings Article | 24 July 2014 Paper

Revealing bio-lines of exoplanets by Fourier spectroscopy

E. Ribak, E. Schwartz, S. Lipson

Proceedings Volume 9146, 91460B (2014) https://doi.org/10.1117/12.2057372

KEYWORDS: Stars, Planets, Exoplanets, Astronomy, Beam splitters, Visible radiation, Telescopes, Fourier spectroscopy, Spectroscopy, Interferometers

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Proceedings Article | 12 September 2012 Paper

Revealing habitable exoplanets through their spectral features

Eyal Schwartz, Stephen Lipson, Erez Ribak

Proceedings Volume 8445, 844520 (2012) https://doi.org/10.1117/12.924999

KEYWORDS: Stars, Planets, Exoplanets, Signal to noise ratio, Space telescopes, Spectroscopy, Telescopes, Earth's atmosphere, James Webb Space Telescope, Molecules

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Proceedings Article | 12 September 2012 Paper

Space borne intensity interferometry via spacecraft formation flight

Erez Ribak, Pini Gurfil, Coral Moreno

Proceedings Volume 8445, 844509 (2012) https://doi.org/10.1117/12.924998

KEYWORDS: Interferometry, Interferometers, Space operations, Transmitters, Space telescopes, Control systems, Optical correlators, Signal detection, Receivers, Satellites

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Proceedings Article | 22 July 2010 Paper

Stellar intensity interferometry: experimental steps toward long-baseline observations

Stephan LeBohec, Ben Adams, Isobel Bond, Stella Bradbury, Dainis Dravins, Hannes Jensen, David Kieda, Derrick Kress, Edward Munford, Paul Nuñez, Ryan Price, Erez Ribak, Joachim Rose, Harold Simpson, Jeremy Smith

Proceedings Volume 7734, 77341D (2010) https://doi.org/10.1117/12.857098

KEYWORDS: Telescopes, Atmospheric Cherenkov telescopes, Electronics, Optical correlators, Interferometry, Cameras, Stars, Control systems, Observatories, Analog electronics

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Proceedings Article | 28 July 2008 Paper

Can laser self-focusing in air replace interferometer siderostats and delay lines?

Erez Ribak

Proceedings Volume 7013, 70130K (2008) https://doi.org/10.1117/12.802837

KEYWORDS: Plasma, Modulation, Laser scattering, Light scattering, Interferometers, Telescopes, Refractive index, Turbulence, Femtosecond phenomena, Scattering

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Proceedings Article | 28 July 2008 Paper

Toward a revival of stellar intensity interferometry

Stephan LeBohec, Cesare Barbieri, Willem-Jan de Wit, Dainis Dravins, Philippe Feautrier, Cédric Foellmi, Andreas Glindemann, Jeter Hall, Jamie Holder, Richard Holmes, Pierre Kervella, David Kieda, Etienne Le Coarer, Stephan Lipson, Fabien Malbet, Sébastien Morel, Paul Nuñez, Aviv Ofir, Erez Ribak, Swapan Saha, Markus Schoeller, Boriz Zhilyaev, Hans Zinnecker

Proceedings Volume 7013, 70132E (2008) https://doi.org/10.1117/12.787443

KEYWORDS: Atmospheric Cherenkov telescopes, Telescopes, Interferometry, Stars, Interferometers, Optical correlators, Receivers, Sensors, Field programmable gate arrays, Signal processing

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Proceedings Article | 18 September 2007 Paper

The European LGS test facility

R. Myers, D. Bonaccini Calia, N. Devaney, S. Esposito, S. Goodsell, A. Goncharov, J. Guerra, H. Guillet de Chatellus, M. Harrison, R. Holzloehner, E. Marchetti, T. Morris, E. Pinna, J.-P. Pique, S. Rabien, M. Reyes, E. Ribak, R. Rutten, H. Schnetler, M. Strachan, R. Stuik, R. G. Talbot, S. Tulloch

Proceedings Volume 6691, 66910Q (2007) https://doi.org/10.1117/12.735804

KEYWORDS: Adaptive optics, Telescopes, Sodium, Control systems, Space telescopes, Wavefront sensors, Lanthanum, Laser guide stars, Wavefronts, Laser applications

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Proceedings Article | 29 June 2006 Paper

Micro-arcsec imaging from the ground with intensity interferometers

Aviv Ofir, Erez Ribak

Proceedings Volume 6268, 62683S (2006) https://doi.org/10.1117/12.689123

KEYWORDS: Reflectors, Interferometers, Sensors, Interferometry, Signal to noise ratio, Stars, Coronagraphy, Distance measurement, Astronomy, Correlation function

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Proceedings Article | 28 June 2006 Paper

Beam combination: all with all

E. Ribak, M. Gai, S. Lipson, P. Parahovnik

Proceedings Volume 6268, 62681L (2006) https://doi.org/10.1117/12.677412

KEYWORDS: Sensors, Beam splitters, Interferometers, Mirrors, Visibility, Telescopes, Calibration, Cylindrical lenses, Sagnac interferometers, Lamps

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Proceedings Article | 28 June 2006 Paper

Search for temporal coherence in the sky

Erez Ribak

Proceedings Volume 6268, 62683G (2006) https://doi.org/10.1117/12.677414

KEYWORDS: Temporal coherence, Photons, Interferometers, Beam splitters, Telescopes, Electrons, Modulation, Signal detection, Plasma, Scattering

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Proceedings Article | 28 June 2006 Paper

Laser guide star projection for large telescopes

Erez Ribak

Proceedings Volume 6272, 62724E (2006) https://doi.org/10.1117/12.684936

KEYWORDS: Telescopes, Laser scattering, Sensors, Laser guide stars, Light scattering, Large telescopes, Sodium, Adaptive optics, Mirrors, Turbulence

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Proceedings Article | 28 June 2006 Paper

Full wave front reconstruction in the Fourier domain

E. Ribak, Y. Carmon, A. Talmi, O. Glazer, O. Srour, N. Zon

Proceedings Volume 6272, 627254 (2006) https://doi.org/10.1117/12.684930

KEYWORDS: Wavefronts, Fourier transforms, Adaptive optics, Demodulation, Stars, Reconstruction algorithms, Deformable mirrors, Convolution, Algorithm development, Wavefront sensors

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Proceedings Article | 20 October 2004 Paper

Multiple-beam combination for faint objects

Erez Ribak, Guy Perrin, Sylvestre Lacour

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.580224

KEYWORDS: Sensors, Fringe analysis, Colorimetry, Collimation, Space telescopes, Telescopes, Interferometry, Fiber couplers, Glasses, Lenses

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Proceedings Article | 20 October 2004 Paper

Interferometry following adaptive optics

Erez Ribak

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.580225

KEYWORDS: Interferometry, Wavefronts, Adaptive optics, Speckle, Telescopes, Speckle imaging, Photons, Interferometers, Deformable mirrors, Wavefront sensors

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Proceedings Article | 7 July 2004 Paper

Separation of atmospheric layers

Erez Ribak

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566295

KEYWORDS: Sensors, Stars, Cameras, Adaptive optics, Atmospheric sensing, Tomography, Acoustics, Wavefronts, Turbulence, Atmospheric optics

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Proceedings Article | 7 July 2004 Paper

Mitigation of spot elongation effects

Erez Ribak, Roberto Ragazzoni

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566344

KEYWORDS: Telescopes, Laser scattering, Adaptive optics, Light scattering, Mirrors, Sodium, Large telescopes, Turbulence, Fiber lasers, Rayleigh scattering

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Proceedings Article | 24 February 2003 Paper

The WSO: a world-class observatory for the ultraviolet

Martin Barstow, L. Binette, Noah Brosch, F.Z. Cheng, Michel Dennefeld, A.I. de Castro, H. Haubold, K.A. van der Hucht, N. Kappelmann, P. Martinez, A. Moisheev, I. Pagano, Erez Ribak, J. Sahade, B. Shustov, J.-E. Solheim, W. Wamsteker, K. Werner, Helmut Becker-Ross, Stefan Florek

Proceedings Volume 4854, (2003) https://doi.org/10.1117/12.459779

KEYWORDS: Ultraviolet radiation, Space telescopes, Sensors, Mirrors, Telescopes, Spectrographs, Imaging systems, Spectrometers, Stars, Spectral resolution

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Proceedings Article | 21 February 2003 Paper

Converting PETAL, the 25m solar collector, into an astronomical research facility

Erez Ribak, Ari Laor, David Faiman, Sergy Biyukov, Noah Brosch

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458053

KEYWORDS: Astronomy, Research facilities, Lithium, Solar energy, Interferometry, Astronomical imaging, Information operations, Astrophysics, Mirrors, Image segmentation

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Proceedings Article | 30 January 2003 Paper

Reconstructing wavefronts with varying Hartmann arrays

Yuval Carmon, Erez Ribak

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.457967

KEYWORDS: Wavefronts, Lithium, Sensors, Demodulation, Telescopes, Information operations, Data analysis, Mirrors

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Proceedings Article | 31 January 2001 Paper

Measuring turbulence in an extended field of view

Erez Ribak

Proceedings Volume 4167, (2001) https://doi.org/10.1117/12.413817

KEYWORDS: Sensors, Turbulence, Stars, Adaptive optics, Telescopes, Wavefronts, Atmospheric optics, Laser guide stars, Tomography, Wavefront sensors

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Proceedings Article | 22 November 2000 Paper

High-resolution curvature sensing

Shirly Vinikman Pinchasi, Erez Ribak

Proceedings Volume 4124, (2000) https://doi.org/10.1117/12.407493

KEYWORDS: Silicon, Wavefronts, Quantum wells, Deformable mirrors, Mirrors, Control systems, Lithium, Phase retrieval, Phase imaging, Image deconvolution

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Proceedings Article | 22 November 2000 Paper

Radio plasma fringes as guide stars: tracking the global tilt

Erez Ribak, Roberto Ragazzoni, Vadim Parfenov

Proceedings Volume 4338, (2000) https://doi.org/10.1117/12.407691

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Proceedings Article | 7 July 2000 Paper

Tracking the global tilt using tails of radio guide stars

Erez Ribak, Roberto Ragazzoni, Vadim Parfenov

Proceedings Volume 4007, (2000) https://doi.org/10.1117/12.390319

KEYWORDS: Stars, Plasma, Atmospheric plasma, Telescopes, Light scattering, Optical simulations, Radio telescopes, Interferometers, Laser guide stars, Atmospheric sensing

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Proceedings Article | 10 December 1999 Paper

Experimental limits on curvature sensing

Erez Ribak

Proceedings Volume 3866, (1999) https://doi.org/10.1117/12.371329

KEYWORDS: Scintillation, Sensors, Wavefronts, Fourier transforms, Adaptive optics, Error analysis, Turbulence, Deformable mirrors, Atmospheric propagation, Cameras

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Proceedings Article | 7 December 1998 Paper

Radio-created plasma beacons for atmospheric tomography

Erez Ribak

Proceedings Volume 3494, (1998) https://doi.org/10.1117/12.332410

KEYWORDS: Plasma, Atmospheric plasma, Stars, Sodium, Astronomy, Tomography, Telescopes, Turbulence, Adaptive optics, Magnetism

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Proceedings Article | 11 September 1998 Paper

Alternative guide stars for adaptive optics

Erez Ribak

Proceedings Volume 3353, (1998) https://doi.org/10.1117/12.321724

KEYWORDS: Plasma, Sodium, Stars, Adaptive optics, Lamps, Atmospheric plasma, Electrons, Laser guide stars, Nitrogen, Pulsed laser operation

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Proceedings Article | 22 September 1997 Paper

Light propagation through multilayer atmospheric turbulence

E. Gershnik, Erez Ribak

Proceedings Volume 3110, (1997) https://doi.org/10.1117/12.281332

KEYWORDS: Turbulence, Wavefronts, Atmospheric propagation, Refractive index, Light wave propagation, Atmospheric turbulence, Wave propagation, Scintillation, Fourier transforms, Multilayers

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Proceedings Article | 15 December 1995 Paper

Atmospheric scintillations for measuring remote wave fronts

Erez Ribak

Proceedings Volume 2580, (1995) https://doi.org/10.1117/12.228480

KEYWORDS: Wavefronts, Scintillation, Turbulence, Adaptive optics, Stars, Photons, Atmospheric scintillation, Atmospheric optics, Near field diffraction, Telescopes

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Proceedings Article | 6 June 1995 Paper

Remote wave-front sensing using atmospheric scintillations

Erez Ribak

Proceedings Volume 2426, (1995) https://doi.org/10.1117/12.211183

KEYWORDS: Turbulence, Wavefronts, Scintillation, Telescopes, Atmospheric scintillation, Adaptive optics, Near field diffraction, Stars, Wavefront sensors, Phase measurement

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Proceedings Article | 31 May 1994 Paper

Compensated imaging over arcminutes with fringes in the sodium layer

Erez Ribak, Yael Baharav, Joseph Shamir

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176043

KEYWORDS: Fringe analysis, Sodium, Turbulence, Adaptive optics, Mirrors, Telescopes, Astronomy, Stars, Atmospheric optics, Cameras

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Proceedings Article | 31 May 1994 Paper

Bimorph deformable mirror design

Steven Lipson, Erez Ribak, C. Schwartz

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176106

KEYWORDS: Mirrors, Sensors, Wavefronts, Electrodes, Adaptive optics, Ferroelectric materials, Astronomy, Zernike polynomials, Deformable mirrors, Turbulence

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Proceedings Article | 31 May 1994 Paper

Fractal nature of atmospherically degraded wavefronts: an aid to prediction

C. Schwartz, Gideon Baum, Erez Ribak, Steven Lipson

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176050

KEYWORDS: Wavefronts, Fractal analysis, Adaptive optics, Astronomy, Turbulence, Stochastic processes, Phase measurement, Atmospheric turbulence, Spatial frequencies, Space telescopes

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Proceedings Article | 13 August 1993 Paper

Bimorph mirror: theoretical limits and technical aspects

Erez Ribak, C. Schwartz, Steven Lipson

Proceedings Volume 1971, (1993) https://doi.org/10.1117/12.151009

KEYWORDS: Mirrors, Sensors, Wavefronts, Electrodes, Ferroelectric materials, Zernike polynomials, Optical engineering, Chemical elements, Adaptive optics, Turbulence

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Proceedings Article | 13 August 1993 Paper

Fractal character of turbulence-degraded wavefronts

C. Schwartz, Gideon Baum, Erez Ribak

Proceedings Volume 1971, (1993) https://doi.org/10.1117/12.151011

KEYWORDS: Wavefronts, Fractal analysis, Optical engineering, Computer simulations, Error analysis, Mirrors, Turbulence, Stochastic processes, Adaptive optics, Atmospheric turbulence

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Proceedings Article | 1 July 1991 Paper

Different aspects of backgrounds in various spectral bands

Ami Ben-Shalom, Adam Devir, Erez Ribak, Eli Talmor, Leslie Balfour, Nahum Brandman

Proceedings Volume 1486, (1991) https://doi.org/10.1117/12.45766

KEYWORDS: Polarization, Sensors, Imaging systems, Fourier transforms, Computer simulations, Atmospheric propagation, Refractive index, Scanners, Black bodies, Refraction

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Proceedings Article | 1 August 1990 Paper

Telescope phasing by simulated annealing

Erez Ribak, Joan Adler, Steven Lipson

Proceedings Volume 1237, (1990) https://doi.org/10.1117/12.19329

KEYWORDS: Telescopes, Mirrors, Space telescopes, Crystals, Algorithms, Wavefronts, Sensors, Annealing, Chemical elements, Interferometry

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Showing 5 of 40 publications

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