Laser Guide Star Adaptive Optics for Astronomy

Laser Guide Star Adaptive Optics for Astronomy
Author: N. Ageorges
Publisher: Springer Science & Business Media
Total Pages: 362
Release: 2013-04-17
Genre: Science
ISBN: 9401596247

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Adaptive optics allows the theoretical limit of angular resolution to be achieved from a large telescope, despite the presence of turbulence. Thus an eight meter class telescope, such as one of the four in the Very Large Telescope operated by ESO in Chile, will in future be routinely capable of an angular resolution of almost 0.01 arcsec, compared tot he present resolution of about 0.5 arcsec for conventional imaging in good condition. All the world's major telescopes either have adaptive optics or are in the process of building AO systems. It turns out that a reasonable fraction of the sky can be observed using adaptive optics, with moderately good imaging quality, provided imaging in done in the near IR. To move out of the near IR, with its relatively poor angular resolution, astronomers need a laser guide star. There is a layer of Na atoms at approximately 90 km altitude that can be excited by a laser to produce such a source, or Rayleigh scattering can be employed lower in the atmosphere. But the production and use of laser guide stars is not trivial, and the key issues determining their successful implementation are discussed here, including the physics of the Na atom, the cone effect, tilt determination, sky coverage, and numerous potential astronomical applications.

Adaptive Optics in Astronomy

Adaptive Optics in Astronomy
Author: François Roddier
Publisher: Cambridge University Press
Total Pages: 421
Release: 1999-06-17
Genre: Science
ISBN: 052155375X

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Adaptive optics is set to revolutionise the future of astronomy; this is the first book on the subject and is set to become the standard reference.

Adaptive Optics for Astronomy

Adaptive Optics for Astronomy
Author: D.M. Alloin
Publisher: Springer Science & Business Media
Total Pages: 368
Release: 1994-03-31
Genre: Science
ISBN: 9780792327486

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The blossoming of adaptive optical techniques has brought about a revolution in the field of astronomical observation. Coupled with the new generation of large, ground-based telescopes, it allows us to achieve an unprecendented angular resolution in the analysis of faint astronomical sources at optical wavelengths. This book provides the basic concepts of adaptive optics, discusses the possible instrumental strategies and the state-of-the-art technical achievements of this development and presents the key astrophysical programs which will most benefit from it. Over fifteen well-known experts have contributed to making this volume a comprehensive one, with steady progression as well as full coverage of the various aspects of the field. Students graduating in optical sciences and astrophysics, astronomers, engineers interested in atmospheric turbulence compensation will find this book a reference text on the subject.

The Adaptive Optics Revolution

The Adaptive Optics Revolution
Author: Robert W. Duffner
Publisher:
Total Pages: 0
Release: 2009
Genre: Science
ISBN: 9780826346919

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Duffner has compiled the history of the most revolutionary breakthrough in astronomy since Galileo pointed his telescope skyward--the technology that will greatly expand our understanding of the universe.

Laser Guide Stars and Adaptive Optics for Astronomy

Laser Guide Stars and Adaptive Optics for Astronomy
Author:
Publisher:
Total Pages: 73
Release: 1992
Genre:
ISBN:

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Five papers are included: feasibility experiment for sodium-alyer laser guide stars at LLNL; system design for a high power sodium beacon laser; sodium guide star adaptive optics system for astronomical imaging in the visible and near-infrared; high frame-rate, large field wavefront sensor; and resolution limits for ground-based astronomical imaging. Figs, tabs, refs.

Adaptive Optics

Adaptive Optics
Author: Michael S. Tarov
Publisher: Nova Publishers
Total Pages: 136
Release: 2002
Genre: Science
ISBN: 9781590334133

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Adaptive optics is a field which is coming into its own with new discoveries occurring almost daily both in astronomy and in applications of AO in applied fields. In an adaptive optics system, the output from a wavefront sensor is used to calculate corrections that actively remove distortions from an image. The applications of adaptive optics in vision science have received considerable impetus from the knowledge developed by astronomers about how to correct images using AO technology. It is expected that developments in adaptive optics will radically change the face of astronomy in the 21st century. These systems will largely overcome the main limitation of ground-based telescopes, namely the severe reduction in image quality caused by turbulence in the Earth's atmosphere. Intended for use at near infrared wavelengths, adaptive optics allow imaging and spectroscopy at the limit of resolution imposed by optical diffraction an advance in astronomer's ability to view the heavens unparalleled since the invention of the telescope. AO is now also entering clinical medicine in the field of ophthalmology and other related fields. This new book presents several hundred current abstracts in the field, each fully indexed, for ease of access and contains a CD ROM for further research.

Introduction to Adaptive Optics

Introduction to Adaptive Optics
Author: Robert K. Tyson
Publisher: SPIE Press
Total Pages: 136
Release: 2000
Genre: Science
ISBN: 9780819435118

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Adaptive optics systems and components have achieved a level of sophistication and simplicity that goes beyond traditional applications in astronomy and the military and into developments in medicine, manufacturing, and communications. This book was written for those interested in the multidisciplinary technology and those who need a broad-brush explanation without wading through thousands of journal articles. It follows the structure of a one-day tutorial taught by the author, including humor and sidebars of historical material.

Laser Guide Star Adaptive Optics Program (LGSAOP).

Laser Guide Star Adaptive Optics Program (LGSAOP).
Author:
Publisher:
Total Pages:
Release:
Genre:
ISBN:

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The Lawrence Livermore National Laboratory of Livermore, California, presents information on its Laser Guide Star Adaptive Optics Program (LGSAOP). The focus of the project is the development of integrated adaptive optics (AO) and sodium-layer laser guide star (LGS) systems for use on large astronomical telescopes.

Principles of Adaptive Optics

Principles of Adaptive Optics
Author: Robert K. Tyson
Publisher: CRC Press
Total Pages: 606
Release: 2022-02-28
Genre: Technology & Engineering
ISBN: 1000531368

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Principles of Adaptive Optics describes the foundations, principles, and applications of adaptive optics (AO) and its enabling technologies. This leading textbook addresses the fundamentals of AO at the core of astronomy, high-energy lasers, biomedical imaging, and optical communications. Key Features: Numerous examples to explain and support the underlying principles Hundreds of new references to support the topics that are addressed End-of-chapter questions and exercises A complete system design example threaded through each chapter as new material is introduced

Astronomical Optics

Astronomical Optics
Author: Daniel J. Schroeder
Publisher: Elsevier
Total Pages: 367
Release: 2012-12-02
Genre: Science
ISBN: 032313856X

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Written by a recognized expert in the field, this clearly presented, well-illustrated book provides both advanced level students and professionals with an authoritative, thorough presentation of the characteristics, including advantages and limitations, of telescopes and spectrographic instruments used by astronomers of today. Written by a recognized expert in the field Provides both advanced level students and professionals with an authoritative, thorough presentation of the characteristics, including advantages and limitations, of telescopes and spectrographic instruments used by astronomers of today