Experimental thermal coupling of laser beams
作者:
W. E. Maher,
R. B. Hall,
期刊:
Journal of Applied Physics
(AIP Available online 1978)
卷期:
Volume 49,
issue 4
页码: 2254-2261
ISSN:0021-8979
年代: 1978
DOI:10.1063/1.325132
出版商: AIP
数据来源: AIP
摘要:
Energy in a laser beam can be transferred to a solid and increase its thermal energy. In a series of experiments, this thermal coupling has been investigated for pulsed CO2laser beams. Target material, air pressure, focal spot size, and laser pulse separation time were varied. A feature often seen is an enhancement of the thermal coupling process above a fluence or intensity threshold. A method for the determination of the spatial profile of the heat absorbed by the target using a single on‐axis thermocouple is presented. For the focal spot size and other conditions in these experiments, this technique shows a heating profile with a width much larger than the focal spot width.
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