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Adaptive Optics for Astronomy : International Series on Microprocessor-Based and Intelligent - D. M. Alloin

Adaptive Optics for Astronomy

International Series on Microprocessor-Based and Intelligent

By: D. M. Alloin (Editor), J. M. Mariotti (Editor)

Hardcover Published: 31st March 1994
ISBN: 9780792327486
Number Of Pages: 338

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For many astronomers, Adaptive Optics is something like a dream coming true. Sinee 1609 and the first observations of celestial bodies performed with the help of an optieal teleseope, astronomers have always fighted to improve the 'resolving power' of their instruments. For a long time, engineers have trimmed the optieal quality of the teleseopes, until they finally reaehed the barrier set by the atmospherie turbulence, a few seconds of are. At that point, the intrinsic quality of the site beeame a major issue to establish new observatories with modern telescopes, and astronomers started to desert the urban skies and to migrate toward mountains and deserts. This quest has been sueeessful and a few privileged sites, where the average natural 'seeing' is close to 0. 5", are now hosting clusters of giant telescopes of the 4 m and soon 10 m class. Yet, this atmospherie limit corresponds in the visible wavelength range to the diffraetion limit of a 20 em telescope only. The loss was severe: a faetor 20 in angular and several hundred in peak energy eoncentration, i. e. in deteetivity of resolution very faint objeets. In the beginning of the seventies, two doors half opened to provide a way out of this dead-end. First, the technique of speckle interferometry (and its various related developments) has allowed to restore the diffraetion limit of large telescopes at visible and infrared wavelengths (see, e. g.

List of Participants
Introduction to Wave Opticsp. 3
Atmospheric Turbulence Optical Effects: Understanding the Adaptive-Optics Implicationsp. 25
Atmospheric Adaptive Optics Applicationsp. 59
Modelling Atmospheric Turbulence Effects on Ground-Based Telescope Systemsp. 65
Servo-Loop Analysis for Adaptive Opticsp. 73
The Problematic of Adaptive Optics Designp. 89
Wavefront Sensingp. 115
Optimization of Wavefront Sensors for the Highest Accuracy and Sensitivityp. 139
Deformable Mirrorsp. 149
Astronomical Reference Sourcesp. 163
Sodium-Layer Laser Guide Starsp. 175
Synthetic Beacons for Atmospheric Compensationp. 185
Sodium Beacon Used for Adaptive Optics on the Multiple Mirror Telescopep. 205
Evaluating the Performance of Adaptive Optical Telescopesp. 211
Integrated Adaptive Optics Systemsp. 227
Stray Radiation Issues in Astronomical Systems with Adaptive Opticsp. 237
Active Compensation of Global Wavefront Tilts at Solar Telescopes: Present Status of an Electronic Developmentp. 249
The Impact of Adaptive Optics on Focal Plane Instrumentationp. 269
Prospects for Alternative Approaches to Adaptive Opticsp. 287
Adaptive Optics for Long Baseline Optical Interferometryp. 309
Astrophysics with Adaptive Optics: Results and Challengesp. 321
Subject Indexp. 335
Table of Contents provided by Blackwell. All Rights Reserved.

ISBN: 9780792327486
ISBN-10: 0792327489
Series: International Series on Microprocessor-Based and Intelligent
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 338
Published: 31st March 1994
Country of Publication: NL
Dimensions (cm): 24.23 x 16.82  x 3.1
Weight (kg): 0.71