Compensation of atmospheric optical distortion using a synthetic beacon

Details Compensation of atmospheric optical distortion using a synthetic beacon Compensation of atmospheric optical distortion using a synthetic beacon

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991natur.353..141p&link_type=abstract

Nature (ISSN 0028-0836), vol. 353, Sept. 12, 1991, p. 141-143. Research supported by DARPA, SDIO, and U.S. Army.

Physics

Optics

61

Atmospheric Correction, Atmospheric Optics, Atmospheric Turbulence, Dye Lasers, Seeing (Astronomy), Synthetic Arrays, Adaptive Optics, Charge Coupled Devices, Stellar Spectrophotometry, Telescopes

Scientific paper

A synthetic beacon has been used to demonstrate atmospheric compensation for turbulence which limits ground-based astronomical observations. A pulsed dye laser was used to generate the beacon and a 241-channel adaptive-optics system was used to perform the phase correction. Almost diffraction-limited resolution of star images in the visible part of the spectrum was obtained. The results indicate that there are no technical barriers to atmospheric compensation using synthetic beacons at ground-based observatories.

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