Spatial coherence and mean intensity of backscattered short-pulse optical radiation

V. A. Banakh; I. V. Zaloznaya

doi:10.1117/12.2074662

25 November 2014 Spatial coherence and mean intensity of backscattered short-pulse optical radiation

V. A. Banakh, I. V. Zaloznaya

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Proceedings Volume 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 92921L (2014) https://doi.org/10.1117/12.2074662
Event: 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 2014, Novosibirsk, Russian Federation

Abstract

The function of mutual coherence of the field and the mean intensity of partially coherent pulsed optical radiation scattered by an atmospheric layer have been calculated. It is shown that as the pulse duration decreases, the spatial coherence of backscattered radiation improves in comparison with the coherence of scattered continuous-wave (cw) radiation. In contrast to cw radiation, which scatters uniformly in the backward direction, the backscattering of pulsed radiation becomes nonuniform for shorter pulses, and for ultrashort pulse durations the backscattered radiation is localized near the strictly backward direction in the zone with transverse dimensions comparable with the initial size of the sensing beam.

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V. A. Banakh and I. V. Zaloznaya "Spatial coherence and mean intensity of backscattered short-pulse optical radiation ", Proc. SPIE 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 92921L (25 November 2014); https://doi.org/10.1117/12.2074662

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