Dr. Ralf C. Flicker Profile

Dr. Ralf C. Flicker

at WM Keck Observatory

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 8 August 2008 Paper

W. M. Keck Observatory's next-generation adaptive optics facility

P. Wizinowich, R. Dekany, D. Gavel, C. Max, S. Adkins, B. Bauman, J. Bell, A. Bouchez, M. Britton, J. Chin, R. Flicker, E. Johansson, R. Kupke, D. Le Mignant, C. Lockwood, D. Medeiros, E. McGrath, A. Moore, C. Neyman, M. Reinig, V. Velur

Proceedings Volume 7015, 701511 (2008) https://doi.org/10.1117/12.790154

KEYWORDS: Adaptive optics, Wavefront sensors, Telescopes, Wavefronts, Stars, Control systems, Sensors, Relays, Point spread functions, Tomography

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Proceedings Article | 14 July 2008 Paper

Low-order wavefront sensing in tomographic multi-beacon adaptive optics systems

Viswa Velur, Ralf Flicker, Richard Dekany, Gustavo Rahmer, Roger Smith, Anna Moore

Proceedings Volume 7015, 70154W (2008) https://doi.org/10.1117/12.788019

KEYWORDS: Sensors, Adaptive optics, Wavefront sensors, Stars, Wavefronts, Sensor performance, Cryogenics, Infrared sensors, Prototyping, Signal to noise ratio

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Proceedings Article | 10 July 2008 Paper

Sharpening of natural guide stars for low-order wavefront sensing using patrolling laser guide stars

R. Dekany, C. Neyman, R. Flicker

Proceedings Volume 7015, 701525 (2008) https://doi.org/10.1117/12.790171

KEYWORDS: Tomography, Wavefronts, Adaptive optics, Wavefront sensors, Telescopes, Stars, Laser guide stars, Monte Carlo methods, Device simulation, Atmospheric modeling

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Proceedings Article | 27 June 2006 Paper

A conceptual design for the Thirty Meter Telescope adaptive optics systems

B. Ellerbroek, C. Boyer, C. Bradley, M. Britton, S. Browne, R. Buchroeder, J.-L. Carel, M. Cho, M. Chun, R. Clare, R. Conan, L. Daggert, R. Dekany, J. Elias, D. Erickson, R. Flicker, D. Gavel, L. Gilles, P. Hampton, G. Herriot, M. Hunten, R. Joyce, M. Liang, B. Macintosh, R. Palomo, I. Powell, S. Roberts, E. Ruch, J.-C. Sinquin, M. Smith, J. Stoesz, M. Troy, G. Tyler, J.-P. Veran, C. Vogel, Q. Yang

Proceedings Volume 6272, 62720D (2006) https://doi.org/10.1117/12.669422

KEYWORDS: Adaptive optics, Telescopes, Mirrors, Laser guide stars, Wavefronts, Wavefront sensors, Stars, Control systems, Imaging spectroscopy, Imaging systems

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Proceedings Article | 27 June 2006 Paper

Multiple guide star tomography demonstration at Palomar Observatory

V. Velur, R. Flicker, B. Platt, M. Britton, R. Dekany, M. Troy, J. Roberts, J. Shelton, J. Hickey

Proceedings Volume 6272, 62725C (2006) https://doi.org/10.1117/12.671666

KEYWORDS: Stars, Wavefronts, Adaptive optics, Wavefront sensors, Tomography, Cameras, Statistical analysis, Error analysis, Sensors, Thirty Meter Telescope

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Proceedings Article | 7 July 2004 Paper

Some aspects of science with a 50-m AO telescope

Ralph Snel, Arne Ardeberg, Ralf Flicker

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566103

KEYWORDS: Adaptive optics, Comets, Stars, Telescopes, Wavefronts, Speckle, Point spread functions, Spectroscopy, Planets, Planetary systems

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Proceedings Article | 7 July 2004 Paper

Efficient simulation of adaptive optics technologies for the Euro50 telescope

Ralf Flicker, Patrick McGuire

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566318

KEYWORDS: Adaptive optics, Device simulation, Computer simulations, Optical simulations, Actuators, Telescopes, Turbulence, Wavefront reconstruction, Tomography, Wavefronts

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Proceedings Article | 7 February 2003 Paper

Preliminary results of the 2001-2002 Gemini sodium monitoring campaign at Cerro Tololo, Chile

Celine d'Orgeville, Francois Rigaut, Maxime Boccas, Christopher Dainty, Enrique Figueroa, Ralf Flicker, Brooke Gregory, Laurent Michaille, John Quartel, Andrei Tokovinin, Gelys Trancho, Nicholas Wooder

Proceedings Volume 4839, (2003) https://doi.org/10.1117/12.457005

KEYWORDS: Sodium, Telescopes, Stars, Gemini Observatory, Adaptive optics, Observatories, Calibration, Laser guide stars, Charge-coupled devices, Atmospheric optics

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Proceedings Article | 7 July 2000 Paper

Principles, limitations, and performance of multiconjugate adaptive optics

Francois Rigaut, Brent Ellerbroek, Ralf Flicker

Proceedings Volume 4007, (2000) https://doi.org/10.1117/12.390311

KEYWORDS: Stars, Adaptive optics, Telescopes, Tomography, Gemini Observatory, Wavefront sensors, Sensors, Point spread functions, Error analysis, Turbulence

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Proceedings Article | 7 July 2000 Paper

Comparison of multiconjugate adaptive optics configurations and control algorithms for the Gemini South 8-m telescope

Ralf Flicker, Francois Rigaut, Brent Ellerbroek

Proceedings Volume 4007, (2000) https://doi.org/10.1117/12.390347

KEYWORDS: Actuators, Adaptive optics, Telescopes, Stars, Signal to noise ratio, Wavefronts, Turbulence, K band, Space telescopes, Atmospheric turbulence

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Showing 5 of 10 publications

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