Results 261 to 270 of about 368,356 (303)

Differential adaptive optics for astronomical interferometry

Applied Optics, 1991
Sometimes it suffices to make the wave-front distortions across individual telescopes equal rather than zero. This leads to the concept of differential adaptive optics.
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Astronomical optical interferometry: an assessment

Comptes Rendus de l'Académie des Sciences - Series IV - Physics, 2001
Abstract Optical interferometry (visible and infrared) becomes a powerful tool for astronomy, with the commissioning in 2001 of two arrays: the Very Large Telescope and the Keck. A survey of the existing interferometers is given, as well as an overview of the scientific achievements of their operation during the last decade, showing that most of ...
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Astronomical science with adaptive optics

Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing, 2004
In the past five years, astronomical adaptive optics systems have begun operation on the world's largest ground-based telescopes. This talk discusses the considerable scientific benefits of astronomical adaptive optics, and highlights some of the exciting new scientific results from adaptive optics systems on 8 - 10 meter telescopes.
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The Giant Magellan Telescope’s high contrast adaptive optics testbed: NGAO wavefront sensing and control laboratory results

Astronomical Telescopes + Instrumentation
The Natural Guide-star Adaptive Optics (NGAO) mode of the Giant Magellan Telescope (GMT) is one of the two diffraction-limited AO modes under development by GMTO and its partner institutions.
F. Quirós-Pacheco, A. Bouchez, C. Plantet, Bo Xin, Jordi Molgó, William Schoenell, Alfio T. Puglisi, Fabio Rossi, Patricio Schurter, J. Haddad, R. Demers, Simone Esposito, A. Cheffot, Nicolò Azzaroli, L. Carbonaro, T. Lapucci, E. Pinna, Laird M. Close, S. Haffert, M. Kautz, J. Males, A. Mcleod, A. Hedglen, V. Gasho, Marcos A. van Dam   +24 more
semanticscholar   +1 more source

LARGEST ASTRONOMICAL OPTICAL TELESCOPES

Publications of the Astronomical Observatory of Belgrade
Abstract. A review of the largest astronomical optical telescopes which are presently operational or under construction is presented. Their scientific capabilities are described briefly, particularly with respect to astrophysical spectroscopy and interferometry.
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Monocrystalline silicon and the meta-shell approach to building x-ray astronomical optics

Optical Engineering + Applications, 2017
Will Zhang, Kim D. Allgood, M. Biskach, Kai-wing Chan, M. Hlinka, J. Kearney, J. Mazzarella, R. Mcclelland, Ai Numata, L. Olsen, R. Riveros, T. Saha, Peter M. Solly   +12 more
semanticscholar   +1 more source

Every photon counts: improving low, mid, and high-spatial frequency errors on astronomical optics and materials with MRF

Astronomical Telescopes + Instrumentation, 2016
C. Maloney, J. Lormeau, P. Dumas
semanticscholar   +1 more source

Emerging technology for astronomical optics metrology

, 2017
I. Trumper, B. Jannuzi, Dae Wook Kim
semanticscholar   +1 more source

FIBER OPTICS IN ASTRONOMICAL INSTRUMENTS

Optics and Photonics News, 1996
The author describes the application of fiber optics in astronomical spectrographs and interferometers. Important properties of fiber optics that impact spectroscopic applications are also discussed.
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Progress toward high-performance reflective and anti-reflection coatings for astronomical optics

Astronomical Telescopes + Instrumentation, 2008
A. Phillips, Joseph S. Miller, W. Brown, D. Hilyard, Brian Dupraw, V. Wallace, D. Cowley   +6 more
semanticscholar   +1 more source