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

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

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1237..259h&link_type=abstract

IN: Amplitude and intensity spatial interferometry; Proceedings of the Meeting, Tucson, AZ, Feb. 14-16, 1990 (A91-30676 12-89).

Astronomy and Astrophysics

Astronomy

3

Apertures, Diffraction Limited Cameras, Image Reconstruction, Infrared Imagery, Speckle Patterns, Algorithms, Astronomical Maps, Computerized Simulation, Infrared Astronomy, Near Infrared Radiation

Scientific paper

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.

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