Dr. Jacques Maurice Beckers Profile

Dr. Jacques Maurice Beckers

Retired

SPIE Involvement:

Author

Publications (31)

Proceedings Article | 11 July 2018 Paper

Tropospheric seeing effects on site selection and the use of adaptive optics for solar telescopes

Jacques Beckers

Proceedings Volume 10703, 107036Y (2018) https://doi.org/10.1117/12.2304661

KEYWORDS: Solar telescopes, Adaptive optics, Coronagraphy, Observatories, Lanthanum, Telescopes, Sun, Laser guide stars, Diffraction, Troposphere

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Proceedings Article | 13 August 2014 Paper

Isoplanatic patch considerations for solar telescope multi-conjugate adaptive optics

Jacques Beckers

Proceedings Volume 9148, 914860 (2014) https://doi.org/10.1117/12.2055348

KEYWORDS: Sun, Stars, Solar telescopes, Adaptive optics, Planets, Sensors, Telescopes, Scintillation, Wavefront sensors, Thirty Meter Telescope

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Proceedings Article | 22 April 2008 Paper

Laser guide stars for daytime thermal IR observations

Jacques Beckers

Proceedings Volume 6986, 69860G (2008) https://doi.org/10.1117/12.801270

KEYWORDS: James Webb Space Telescope, Telescopes, Space telescopes, Sodium, Infrared telescopes, Optical filters, Thermography, Laser guide stars, Micro optical fluidics, Spatial resolution

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Proceedings Article | 23 June 2006 Paper

Site testing for the Advanced Technology Solar Telescope

F. Hill, J. Beckers, P. Brandt, J. Briggs, T. Brown, W. Brown, M. Collados, C. Denker, S. Fletcher, S. Hegwer, T. Horst, M. Komsa, J. Kuhn, A. Lecinski, H. Lin, S. Oncley, M. Penn, R. Radick, T. Rimmele, H. Socas-Navarro, K. Streander

Proceedings Volume 6267, 62671T (2006) https://doi.org/10.1117/12.673677

KEYWORDS: Telescopes, Lanthanum, Solar telescopes, Infrared telescopes, Observatories, Astronomy, Data analysis, Absorption, Turbulence, Optical instrument design

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Proceedings Article | 23 June 2006 Paper

From Euro50 toward a European ELT

Arne Ardeberg, Torben Andersen, Jacques Beckers, Michael Browne, Anita Enmark, Per Knutsson, Mette Owner-Petersen

Proceedings Volume 6267, 626725 (2006) https://doi.org/10.1117/12.671392

KEYWORDS: Adaptive optics, Stars, Telescopes, Sensors, Point spread functions, Galactic astronomy, Mirrors, Deformable mirrors, Actuators, Spectroscopy

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Proceedings Article | 28 September 2004 Paper

Solar site testing for the Advanced Technology Solar Telescope

Frank Hill, Jacques Beckers, Peter Brandt, John Briggs, Timothy Brown, W. Brown, Manuel Collados, Carsten Denker, Steven Fletcher, Steven Hegwer, T. Horst, Mark Komsa, Jeff Kuhn, Alice Lecinski, Haosheng Lin, Steve Oncley, Matthew Penn, Thomas Rimmele, Hector Socas-Navarro, Kim Streander

Proceedings Volume 5489, (2004) https://doi.org/10.1117/12.551812

KEYWORDS: Lanthanum, Solar telescopes, Telescopes, Observatories, Astronomy, Infrared telescopes, Absorption, Statistical analysis, Coronagraphy, Wind measurement

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Proceedings Article | 7 July 2004 Paper

Sodium beacon wavefront sensing for the Euro50 telescope in the presence of perspective elongation

Jacques Beckers, Mette Owner-Petersen, Torben Andersen

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566229

KEYWORDS: Wavefront sensors, Telescopes, Polarization, Pulsed laser operation, Sodium, Sodium guide stars, Modulators, Antimony, Lenses, Adaptive optics

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Proceedings Article | 7 July 2004 Paper

Euro50

Torben Andersen, Arne Ardeberg, Jacques Beckers, Alexander Goncharov, Mette Owner-Petersen, Holger Riewaldt

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566203

KEYWORDS: Mirrors, Adaptive optics, Telescopes, Laser guide stars, Deformable mirrors, Wavefront sensors, Sensors, Stars, Control systems, Polishing

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Proceedings Article | 4 February 2004 Paper

Development of SCIDAR for solar observations

Jacques Beckers, Thomas Rimmele

Proceedings Volume 5171, (2004) https://doi.org/10.1117/12.504232

KEYWORDS: Stars, Telescopes, Scintillation, Cameras, Solar telescopes, Diffraction, Astronomy, Atmospheric scintillation, Camera shutters, Observatories

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Proceedings Article | 24 December 2003 Paper

Rapid refocusing system for the Euro50 telescope aimed at removing the perspective elongation of laser beacons

Jacques Beckers, Mette Owner-Petersen, Torben Andersen

Proceedings Volume 5169, (2003) https://doi.org/10.1117/12.504238

KEYWORDS: Telescopes, Wavefront sensors, Polarization, Pulsed laser operation, Sodium, Lenses, Modulators, Sodium guide stars, Antimony, Quartz

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Proceedings Article | 11 February 2003 Paper

The ATST seeing monitor: February 2002 observations at Fuxian Lake

Jacques Beckers, Zhong Liu, Zhenyu Jin

Proceedings Volume 4853, (2003) https://doi.org/10.1117/12.460268

KEYWORDS: Scintillation, Telescopes, Observatories, Solar telescopes, Sun, Wavefronts, Atmospheric optics, Stars, Fourier transforms, Motion measurement

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Proceedings Article | 30 January 2003 Paper

The Euro50 extremely large telescope

Torben Andersen, Arne Ardeberg, Jacques Beckers, Alexander Goncharov, Mette Owner-Petersen, Holger Riewaldt, Ralph Snel, David Walker

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.458049

KEYWORDS: Mirrors, Telescopes, Adaptive optics, Laser guide stars, Wavefront sensors, Deformable mirrors, Polishing, K band, Sensors, Large telescopes

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Proceedings Article | 30 January 2003 Paper

Future giant telescopes: astronomy's Holy Grail or Pandora's Box?

Jacques Beckers

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.457989

KEYWORDS: Telescopes, Adaptive optics, Mirrors, Space telescopes, Astronomical telescopes, Astronomy, Large telescopes, Diffraction, Optical instrument design, Radio telescopes

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Proceedings Article | 30 January 2003 Paper

Adaptive optics for the Euro50: design and performance

Alexander Goncharov, Mette Owner-Petersen, Torben Andersen, Jacques Beckers, Nicholas Devaney

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.458028

KEYWORDS: Adaptive optics, Telescopes, Wavefronts, Mirrors, Actuators, Silver, Atmospheric modeling, Stars, Wavefront sensors, Atmospheric turbulence

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Proceedings Article | 30 January 2003 Paper

Control strategy for the adaptive optics of the Euro50

Mette Owner-Petersen, Torben Andersen, Alexander Goncharov, Jacques Beckers

Proceedings Volume 4840, (2003) https://doi.org/10.1117/12.458040

KEYWORDS: Wavefronts, Wavefront sensors, K band, Mirrors, Adaptive optics, Point spread functions, Atmospheric modeling, Sensors, Stars, V band

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SPIE Journal Paper | 1 May 2002

Adaptive optics schemes for future extremely large telescopes

Alexander Goncharov, Mette Owner-Petersen, Torben Andersen, Jacques Beckers

OE, Vol. 41, Issue 05, (May 2002) https://doi.org/10.1117/12.10.1117/1.1466461

KEYWORDS: Adaptive optics, Wavefront sensors, Wavefronts, Telescopes, Mirrors, Sensors, Stars, Relays, Sensing systems, Actuators

Proceedings Article | 4 February 2002 Paper

Correlation tracking algorithms for low-contrast extended object

Changhui Rao, Wenhan Jiang, Ning Ling, Jacques Beckers

Proceedings Volume 4494, (2002) https://doi.org/10.1117/12.454798

KEYWORDS: Detection and tracking algorithms, Telescopes, Observatories, Motion measurement, Image stacking, Adaptive optics, Data processing, Electronics, Atmospheric turbulence, Sensors

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Proceedings Article | 7 July 2000 Paper

Multiconjugate adaptive optics: experiments in atmospheric tomography

Jacques Beckers

Proceedings Volume 4007, (2000) https://doi.org/10.1117/12.390312

KEYWORDS: Tomography, Adaptive optics, Wavefronts, Atmospheric optics, Telescopes, Solar telescopes, Sun, Computed tomography, Wavefront distortions, Astronomy

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Proceedings Article | 25 August 1998 Paper

Site survey for a large solar telescope

Jacques Beckers, James Mason

Proceedings Volume 3352, (1998) https://doi.org/10.1117/12.319315

KEYWORDS: Scintillation, Sensors, Signal detection, Solar telescopes, Calibration, Lanthanum, Observatories, Atmospheric optics, Sun, Clouds

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Proceedings Article | 25 August 1998 Paper

Design of a large low-scattered light telescope for solar observations

Jacques Beckers

Proceedings Volume 3352, (1998) https://doi.org/10.1117/12.319273

KEYWORDS: Telescopes, Mirrors, Coronagraphy, Solar telescopes, Diffraction, Adaptive optics, Infrared telescopes, Off axis mirrors, Light scattering, Control systems

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Proceedings Article | 9 July 1998 Paper

Effect of telecentric use of narrow-band filters on diffraction-limited imaging

Jacques Beckers

Proceedings Volume 3355, (1998) https://doi.org/10.1117/12.316815

KEYWORDS: Fabry–Perot interferometers, Image filtering, Point spread functions, Diffraction, Optical filters, Collimation, Telescopes, Doppler effect, Astronomical imaging, Electronic filtering

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Proceedings Article | 21 March 1997 Paper

Atmospheric dispersion correction for the FORS Focal Reducers at the ESO VLT

Gerardo Avila, Gero Rupprecht, Jacques Beckers

Proceedings Volume 2871, (1997) https://doi.org/10.1117/12.269000

KEYWORDS: Prisms, Telescopes, Atmospheric corrections, Image quality, Dispersion, Large telescopes, Observatories, Stars, Silica, Image resolution

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Proceedings Article | 1 June 1994 Paper

Imaging with array detectors using chopping and other forms of differential detection

Jacques Beckers

Proceedings Volume 2198, (1994) https://doi.org/10.1117/12.176739

KEYWORDS: Sensors, Telescopes, Signal detection, Signal to noise ratio, Imaging arrays, Astronomy, Image sensors, Detection and tracking algorithms, Infrared astronomy, Detector arrays

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Proceedings Article | 1 June 1994 Paper

Effects of heat sources in the telescope beam on astronomical image quality

Jacques Beckers, Jorge Melnick

Proceedings Volume 2199, (1994) https://doi.org/10.1117/12.176213

KEYWORDS: Telescopes, Image quality, Mirrors, Astronomical telescopes, Astronomy, Observatories, Thermal effects, Electronics, Temperature metrology, Light

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Proceedings Article | 1 June 1994 Paper

Estimating the effects of nitrate mining activities on the astronomical site quality of the Cerro Paranal Observatory

Jacques Beckers

Proceedings Volume 2199, (1994) https://doi.org/10.1117/12.176253

KEYWORDS: Mining, Pollution, Observatories, Atmospheric modeling, Astronomy, Aerosols, Atmospheric particles, Scattering, Land mines, Laser guide stars

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Proceedings Article | 26 July 1993 Paper

Progress in high resolution astronomical imaging including active and adaptive optics

Jacques Beckers

Proceedings Volume 1983, 198321 (1993) https://doi.org/10.1117/12.2308492

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Proceedings Article | 1 July 1990 Paper

VLT Interferometer: III. Factors affecting wide field-of-view operation

Jacques Beckers

Proceedings Volume 1236, (1990) https://doi.org/10.1117/12.19210

KEYWORDS: Wavefronts, Tolerancing, Interferometers, Telescopes, Optical telescopes, Interferometry, Stars, Polarization, Optical arrays, Detector arrays

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Proceedings Article | 1 July 1990 Paper

VLT Interferometer: II. Factors affecting on-axis operation

Jacques Beckers

Proceedings Volume 1236, (1990) https://doi.org/10.1117/12.19208

KEYWORDS: Interferometers, Telescopes, Adaptive optics, Tolerancing, Polarization, Sensors, Calibration, Diffraction, Wavefronts, Atmospheric optics

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Proceedings Article | 1 July 1990 Paper

Interferometry with ESO's Very Large Telescope

Jacques Beckers

Proceedings Volume 1319, (1990) https://doi.org/10.1117/12.34794

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Proceedings Article | 1 July 1990 Paper

VLT interferometer: IV. The utility of partial adaptive optics

Jacques Beckers

Proceedings Volume 1236, (1990) https://doi.org/10.1117/12.19195

KEYWORDS: Adaptive optics, Speckle, Wavefront sensors, Optical components, Optical telescopes, Photons, Speckle interferometry, Infrared telescopes, Visible radiation, Interferometry

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Proceedings Article | 1 July 1990 Open Access

VLT interferometer: proposed implementation

Jacques Beckers, Daniel Enard, Michel Faucherre, Fritz Merkle, G. Di Benedetto, R. Braun, R. Foy, Reinhard Genzel, Laurent Koechlin, Gerd Weigelt

Proceedings Volume 1236, (1990) https://doi.org/10.1117/12.19191

KEYWORDS: Telescopes, Interferometry, Interferometers, Mirrors, Adaptive optics, Optical telescopes, Fermium, Frequency modulation, Infrared telescopes, Relays

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