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Proceedings Paper

Artificial optical guidestars: prospects for extremely large telescopes
Author(s): R. Q. Fugate
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Paper Abstract

This paper discusses the concept of employing artificial guide stars to correct atmospheric turbulence induced wavefront distortion for Extremely Large Telescopes (ELTs) conducting science observations at near IR and visible wavelengths. A set of generic laser guide star requirements for ELTs is established with the caveat that a community wide consensus on laser parameters would benefit the advancement of laser technology. Currently available laser guide star systems are examined in light of the requirements and their limitations referenced to the requirements are discussed. A short summary is provided of current research and development efforts to advance laser performance. Finally, a new concept is presented for generating very bright optical guidestars using high power microwaves to create, sustain, and move about the sky a high altitude, compact plasma.

Paper Details

Date Published: 22 April 2008
PDF: 9 pages
Proc. SPIE 6986, Extremely Large Telescopes: Which Wavelengths? Retirement Symposium for Arne Ardeberg, 69860F (22 April 2008); doi: 10.1117/12.801268
Show Author Affiliations
R. Q. Fugate, New Mexico Institute of Mining and Technology (United States)


Published in SPIE Proceedings Vol. 6986:
Extremely Large Telescopes: Which Wavelengths? Retirement Symposium for Arne Ardeberg

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