Propagation of a saturating laser beam through methane
JOSA B, Vol. 5, Issue 1, pp. 112-115 (1988)
http://dx.doi.org/10.1364/JOSAB.5.000112
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Abstract
We have reexamined the propagation of a Gaussian beam through a saturable material and derived an expression that exhibits a departure from Beer's law. The results cannot be represented by a generalization of Beer's law in which the absorption coefficient is intensity dependent. We have measured the absorption of the 3.39-μm He–Ne line in methane and found that some of the discrepancies in the literature can be attributed to the neglect of saturation. Theoretical and experimental results are in quantitative agreement.
© 1988 Optical Society of America
Citation
R. E. Mueller and A. D. May, "Propagation of a saturating laser beam through methane," J. Opt. Soc. Am. B 5, 112-115 (1988)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-5-1-112
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