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Temperature distributions in semi-infinite and finite-thickness media as a result of absorption of laser light

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Abstract

A time-domain method is used to derive simple expressions for temperature distributions within media heated by a moving laser beam with a Gaussian power density profile. Various medium-absorption functions are considered. The solutions are given as single integrals with respect to time of simple functions. The expressions can be applied to multilayer media consisting of layers with different optical (light-absorbing) properties, provided that the layers have similar thermal properties. A number of optical recording examples have been examined in detail, and the results compared with those obtained by use of a more general (fast-Fourier-transform-based) approach.

© 1997 Optical Society of America

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Corrections

M. K. Loze and C. D. Wright, "Temperature distributions in semi-infinite and finite-thickness media as a result of absorption of laser light: erratum," Appl. Opt. 36, 4890-4890 (1997)
https://opg.optica.org/ao/abstract.cfm?uri=ao-36-20-4890

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