Atmospheric Noise on the Bispectrum in Optical Speckle Interferometry

Details Atmospheric Noise on the Bispectrum in Optical Speckle Interferometry Atmospheric Noise on the Bispectrum in Optical Speckle Interferometry

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987japa....8..271k&link_type=abstract

Journal of Astrophysics and Astronomy, Vol. 8:SEP3, P.271, 1987

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

Based on a simple picture of speckle phenomena in optical interferometry it is shown that the recent signal-to-noise ratio estimate for the so called bispectrum, due to Wirnitzer (1985), does not possess the right limit when photon statistics is unimportant. In this wave-limit, which is true for bright sources, his calculations over-estimate the signal-to-noise ratio for the bispectrum by a factor of the order of the square root of the number of speckles.

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