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Author : Uriel Conod
Release : 2018
Genre :
Kind : eBook
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Book Synopsis Adaptive Optics for High Resolution Spectroscopy by : Uriel Conod
Download or read book Adaptive Optics for High Resolution Spectroscopy written by Uriel Conod. This book was released on 2018. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Release : 1999
Genre :
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Book Synopsis Adaptive Optics High Resolution Spectroscopy by :
Download or read book Adaptive Optics High Resolution Spectroscopy written by . This book was released on 1999. Available in PDF, EPUB and Kindle. Book excerpt: High resolution spectroscopy experiments with visible adaptive optics (AO) telescopes at Starfire Optical Range and Mt. Wilson have demonstrated that spectral resolution can be routinely improved by a factor of - 10 over the seeing-limited case with no extra light losses at visible wavelengths. With large CCDs now available, a very wide wavelength range can be covered in a single exposure. In the near future, most large ground-based telescopes will be equipped with powerful A0 systems. Most of these systems are aimed primarily at diffraction-limited operation in the near IR. An exciting new opportunity will thus open up for high resolution IR spectroscopy. Immersion echelle gratings with much coarser grooves being developed by us at LLNL will play a critical role in achieving high spectral resolution with a compact and low cost IR cryogenically cooled spectrograph and simultaneous large wavelength coverage on relatively small IR detectors. We have constructed a new A0 optimized spectrograph at Steward Observatory to provide R = 200,000 in the optical, which is being commissioned at the Starfire Optical Range 3.5m telescope. We have completed the optical design of the LLNL IR Immersion Spectrograph (LISPEC) to take advantage of improved silicon etching technology. Key words: adaptive optics, spectroscopy, high resolution, immersion gratings.
Author : Michael S. Tarov
Release : 2002
Genre : Science
Kind : eBook
Book Rating : 133/5 ( reviews)
Book Synopsis Adaptive Optics by : Michael S. Tarov
Download or read book Adaptive Optics written by Michael S. Tarov. This book was released on 2002. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Author : Wolfgang Brandner
Release : 2005-04-11
Genre : Science
Kind : eBook
Book Rating : 340/5 ( reviews)
Book Synopsis Science with Adaptive Optics by : Wolfgang Brandner
Download or read book Science with Adaptive Optics written by Wolfgang Brandner. This book was released on 2005-04-11. Available in PDF, EPUB and Kindle. Book excerpt: The field of Adaptive Optics (AO) for astronomy has matured in recent years, and diffraction-limited image resolution in the near-infrared is now routinely achieved by ground-based 8 to 10m class telescopes. This book presents the proceedings of the ESO Workshop on Science with Adaptive Optics held in the fall of 2003. The book provides an overview on AO instrumentation, data acquisition and reduction strategies, and covers observations of the sun, solar system objects, circumstellar disks, substellar companions, HII regions, starburst environments, late-type stars, the galactic center, active galaxies, and quasars. The contributions present a vivid picture of the multitude of science topics being addressed by AO in observational astronomy.
Author : Markus Erdmann Kasper
Release : 2000
Genre :
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Book Synopsis Optimization of an Adaptive Optics System and Its Application to High-resolution Imaging Spectroscopy of T Tauri by : Markus Erdmann Kasper
Download or read book Optimization of an Adaptive Optics System and Its Application to High-resolution Imaging Spectroscopy of T Tauri written by Markus Erdmann Kasper. This book was released on 2000. Available in PDF, EPUB and Kindle. Book excerpt:
