Speckle interferometry with severely aberrated telescopes

Details Speckle interferometry with severely aberrated telescopes Speckle interferometry with severely aberrated telescopes

Sep 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977josa...67.1277k&link_type=abstract

Optical Society of America, Journal, vol. 67, Sept. 1977, p. 1277, 1278.

Physics

Optics

6

Aberration, Interferometry, Modulation Transfer Function, Speckle Patterns, Telescopes, Atmospheric Optics, Defocusing, Optical Data Processing, Spatial Filtering, Spectral Resolution, Wave Diffraction

Scientific paper

The possibility of near-diffraction-limited resolution for speckle interferometry in the presence of severe defocus is investigated by quantitative measurements of the modulation transfer function (MTF). For roughly 20/pi waves of defocus, possible additional aberrations, and a telescope-atmosphere observing condition characterized by a ratio of diameter to incident wave correlation scale of 19.2, the MTF is monotonic and is depressed by a factor of less than 20 from that of the unaberrated system.

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