Physics – Optics
Scientific paper
Mar 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977josa...67..298b&link_type=abstract
Optical Society of America, Journal, vol. 67, Mar. 1977, p. 298-303. ERDA-supported research;
Physics
Optics
12
Atmospheric Turbulence, Image Enhancement, Optical Correction Procedure, Telescopes, Turbulence Effects, Wave Front Deformation, Atmospheric Optics, Computerized Simulation, Feedback Control, Laser Applications, Light Transmission, Mirrors, Performance Prediction, Phase Shift, Real Time Operation, Reflecting Telescopes, Signal Distortion
Scientific paper
A 30 x 5 cm aperture telescope employing six movable mirrors to compensate for atmospherically induced phase distortion is built and tested. A feedback system adjusts the mirrors in real time to maximize the intensity of light passing through a narrow slit in the image plane. Essentially diffraction-limited performance is achieved when imaging both laser and white-light objects through 250 m of turbulent atmosphere. The behavior of the telescope is accurately predicted by computer simulations. The system has yet to achieve its full potential, but has already operated successfully for objects as dim as 5th magnitude.
Buffington Andrew
Crawford Frank S.
Muller Richard A.
Schwemin A. J.
Smits Robert G.
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