Image reconstruction by means of wave-front sensor measurements in closed-loop adaptive-optics systems.

Details Image reconstruction by means of wave-front sensor measurements in closed-loop adaptive-optics systems. Image reconstruction by means of wave-front sensor measurements in closed-loop adaptive-optics systems.

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993josaa..10.1996r&link_type=abstract

Journal of the Optical Society of America A, Vol. 10, No. 9, p. 1996 - 2007

Physics

Optics

12

Scientific paper

Theoretical and experimental investigations of the imaging technique referred to as speckle holography have shown that wave-front information can be used in the postprocessing of astronomical data to improve the quality of images. In a closed-loop adaptive-optics system the wave-front sensor is continuously measuring the residual wave-front error. Thus wave-front information is continuously available for use in image reconstruction. The authors show here that wave-front information in a closed-loop adaptive-optics system, used in a postprocessing scheme, can improve the phase of the compensated optical-transfer function in systems with finite delays between wave-front sensing and phase correction.

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