OPTICAL BICHROMATIC CORRELATION METHOD FOR THE REMOTE SENSING OF THE INNER SCALE.

Z. Azar, E. Azoulay, M. Tur

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Recent measurements of the scintillation index have generally indicated values larger than those predicted by theories which assume a vanishing inner scale I//0. A relatively accurate technique is based on monitoring the spherical-wave logarithmic amplitude variances of two light sources. The present authors propose using the light wavelength as the additional degree of freedom required for determination of I//0. By using a laser transmitter emitting collinearly at two wavelengths, lambda //1, lambda //2, and two wavelength selective detectors, sharing the same relatively small receiver optics, the bichromatic correlation between the scintillations of lambda //1 and lambda //2 can be measured. This intensity correlation is a single-valued function of the inner scale size vertical //0 for a given propagation path. The optical paths are identified for the two beams, and aperture averaging is insignificant.

Original languageEnglish
Title of host publicationUnknown Host Publication Title
PublisherOptical Soc of America
Pages4-5
Number of pages2
ISBN (Print)0936659491
StatePublished - 1987
Externally publishedYes

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