Image Improvement from a Sodium-Layer Laser Guide Star Adaptive Optics System-Reference-Cited by-同舟云学术

Image Improvement from a Sodium-Layer Laser Guide Star Adaptive Optics System

Published:1997-09-12 Issue:5332 Volume:277 Page:1649-1652
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Max C. E.¹²³,Olivier S. S.¹²³,Friedman H. W.¹²³,An J.¹²³,Avicola K.¹²³,Beeman B. V.¹²³,Bissinger H. D.¹²³,Brase J. M.¹²³,Erbert G. V.¹²³,Gavel D. T.¹²³,Kanz K.¹²³,Liu M. C.¹²³,Macintosh B.¹²³,Neeb K. P.¹²³,Patience J.¹²³,Waltjen K. E.¹²³

Affiliation:

1. C. E. Max, S. S. Olivier, H. W. Friedman, J. An, K. Avicola, B. V. Beeman, H. D. Bissinger, J. M. Brase, G. V. Erbert, D. T. Gavel, K. Kanz, B. Macintosh, K. P. Neeb, K. E. Waltjen, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA.

2. M. C. Liu, Department of Astronomy, University of California, Berkeley, CA 94720, USA.

3. J. Patience, Department of Physics and Astronomy, University of California, 405 Hilgard Avenue, Los Angeles, CA 90024, USA.

Abstract

A sodium-layer laser guide star beacon with high-order adaptive optics at Lick Observatory (Mount Hamilton, California) produced a factor of 2.4 intensity increase and a factor of 2 decrease in full width at half maximum for an astronomical point source, compared with image motion compensation alone. The image full widths at half maximum were identical for laser and natural guide stars (0.3 arc second). The Strehl ratio with the laser guide star was 65 percent of that with a natural guide star. This technique should allow ground-based telescopes to attain the diffraction limit, by correcting for atmospheric distortions.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference34 articles.

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