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Published August 1, 1990 | Published
Book Section - Chapter Open

Diffraction-limited imaging at IR wavelengths using aperture masks and fully filled apertures

Abstract

The performance of a phase recovery algorithm developed for speckle data collected using a pupil-plane mask has been investigated for use at near-infrared wavelengths. The method, based on the radio-astronomical self-calibration technique, has been tested alongside a state-of-the-art implementation of the Knox-Thompson scheme using both simulated and real specklegrams. Results indicate that the new procedure is as effective as the Knox-Thompson based image reconstruction scheme and is applicable to a wide range of astrophysically interesting sources.

Additional Information

© 1990 SPIE--The International Society for Optical Engineering. Partial funding for this research was provided by the SERC, Christ's College Cambridge and Royal Commission for the Exhibition of 1851. CAH would like to thank Tim Cornwell and Andrea Ghez for helpful discussions while this manuscript was being prepared. The National Optical Astronomy Observatories are operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation.

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