Temperature rise induced by a rotating or dithering laser beam
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Authors
Zhou, Hong
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2011
Date
2011
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Abstract
We study the maximum temperature rise induced by a rotating or dithering Gaussian laser beam on a semi-infinite body. An analytical solution is obtained by solving the transient three-dimensional heat equation in a semi-infinite domain with insulating surface. The effect of rotating or dithering frequency on maximum temperature rise is quantitatively investigated for stainless steel and carbon nanotube-alumina composites. It is found that the maximum temperature rise can be reduced by increasing the frequency of the rotating or dithering beam and by increasing the radius of the rotating or dithering trajectory. For a fixed frequency, the maximum temperature rise induced by a rotating beam is lower than the one induced by a dithering beam. Finally, we give the asymptotic solution of the temperature rise for large frequency
of a rotating Gaussian beam.
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Article
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The article of record as published may be located at http://www.m-hikari.com/astp/astp2011/astp9-12-2011/zhouASTP9-12-2011.pdf
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Applied Mathematics
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Advanced Studies in Theoretical Physics / Volume 5, Issue 10, 443-468
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.