Abstract

An analysis is made which shows that if the pupil plane of a large telescope is relayed into a special achromatic prism interferometer of 180° rotational shear and with point symmetry, the second statistical moment of the pupil irradiance fluctuations reveals information about the source two-dimensional mutual coherence function (MCF) at spatial frequencies that, under ordinary conditions, are severely attenuated by propagation through the atmosphere. To obtain a measure of the MCF at points across the telescope pupil simultaneously, it is necessary to use a two-dimensional photo-electronic array detector, with real-time processing.

© 1975 Optical Society of America

Analysis of a method for obtaining near-diffraction-limited information in the presence of atmospheric turbulence

D. Korff
J. Opt. Soc. Am. 63(8) 971-980 (1973)

Passive imaging through the turbulent atmosphere: Fundamental limits on the spatial frequency resolution of a rotational shearing interferometer

James J. Burke and James B. Breckinridge
J. Opt. Soc. Am. 68(1) 67-77 (1978)

Image information by means of speckle-pattern processing*

Paul H. Deitz
J. Opt. Soc. Am. 65(3) 279-285 (1975)

Isoplanicity: The translation invariance of the atmospheric Green’s function*

D. Korff, G. Dryden, and R. P. Leavitt
J. Opt. Soc. Am. 65(11) 1321-1330 (1975)

Real-time wavefront correction through Bragg diffraction of light by sound waves*

Virendra N. Mahajan
J. Opt. Soc. Am. 65(3) 271-278 (1975)