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Proceedings Paper

Energy balance between vaporization and heating in the absorption of CO2 laser radiation by water
Author(s): Robert E. Mueller; Henry Yam; Walter W. Duley
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Paper Abstract

The use of lasers in industrial and medical procedures continues to increase. A fundamental question in many laser- material interactions is how is the incident laser power transferred to the target material, and how is the power distributed among the phases (solid, liquid, vapor) of the material. This paper describes the results of a fundamental calorimetry experiment to determine the fraction of incident carbon-dioxide laser energy which is used to vaporize water from a target volume, and the fraction of power used to simply heat the remaining liquid. The experiment was performed over a range of incident laser powers from 60 to 300 W. Over most of the range of incident power, the fraction used to vaporize water is 30 to 35 percent. This fraction increases at the lowest powers.

Paper Details

Date Published: 27 March 1997
PDF: 6 pages
Proc. SPIE 2993, Lasers as Tools for Manufacturing II, (27 March 1997); doi: 10.1117/12.270032
Show Author Affiliations
Robert E. Mueller, Univ. of Waterloo (Canada)
Henry Yam, Univ. of Waterloo (Canada)
Walter W. Duley, Univ. of Waterloo (Canada)

Published in SPIE Proceedings Vol. 2993:
Lasers as Tools for Manufacturing II
Leonard R. Migliore; Ronald D. Schaeffer, Editor(s)

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