Physics – Optics
Scientific paper
Nov 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992optl...17.1485t&link_type=abstract
Optics Letters (ISSN 0146-9592), vol. 17, no. 21, p. 1485-1487.
Physics
Optics
9
Excimer Lasers, Laser Guidance, Rayleigh Scattering, Reference Stars, Telescopes, Adaptive Optics, Light Scattering
Scientific paper
A commercially manufactured excimer laser was used to project a focused laser beam into the atmosphere to altitudes in the range of 10 to 30 km. Rayleigh-backscattered light from a slice of the illuminated column, when imaged in a ground-based telescope, produced an image that is essentially identical to that of a natural star. This experiment demonstrates the ease of producing bright and sharply focused laser guide stars at 351 nm. Such laser guide stars are ideal for guiding astronomical telescopes equipped with adaptive optics.
Castle Richard M.
Thompson Laird A.
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