Abstract

An analytic model of atmospheric bleaching at 10.6 μm is derived from analysis of the kinetic equations for the CO2–N2–H2O system. The case of upward-directed CO2 laser beams is of particular interest, and values of local absorptance and total absorption integrated along beam path are given. At intensities 106–107 W cm−2 thermal blooming of the laser beam is greatly reduced due to bleached absorption.

© 1978 Optical Society of America

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