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Instantaneous intensity distribution in a focused laser beam at 0.63 μm and 10.6 μm propagating through the atmosphere

H. Raidt and D. H. Höhn

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Abstract

Experimental results from investigations of instantaneous intensity distributions in focused laser beams at 0.63 μm and 10.6 μm at a distance of approximately 5 km are presented and discussed. At 0.63 μm the beam pattern is broken into several diffraction-scale spots because focusing is saturated. At 10.6 μm the beam pattern is almost uniform. This is valid for beam dimensions smaller than the correlation length of the amplitude.

© 1975 Optical Society of America

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