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Proceedings Paper

Energy release in interactions of laser pulse with solid fuels and metals
Author(s): Victor V. Vorobyov; Mikhail N. Libenson
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Paper Abstract

Total energy involved in the process of laser pulse irradiation of coal, hexamethylene tetramine. Al, and Bi was measured. The experiments were performed with Nd-laser- generated single 50-ns FWHM pulses with peak focused intensities ranging from 106 to 109 W/cm2. It was found that the irradiation of studied materials with single laser pulse induces a release of additional energy. For fuels, the additional energy may be of an order of magnitude greater than laser pulse energy. For metals, the ratio of the additional energy to the laser pulse energy is about 0.2-0.4. Using the material removal measurements and the reference specific combustion heat of fuels, the theoretical estimations of energy produced by combustion of material removed by laser pulse were made. Theoretical estimations and experimental results are in good agreement for coal irradiated in air.

Paper Details

Date Published: 1 December 1991
PDF: 9 pages
Proc. SPIE 1440, Optical Radiation Interaction with Matter, (1 December 1991); doi: 10.1117/12.48151
Show Author Affiliations
Victor V. Vorobyov, Kharkov State Univ. (Ukraine)
Mikhail N. Libenson, S.I. Vavilov State Optical Institute (Russia)

Published in SPIE Proceedings Vol. 1440:
Optical Radiation Interaction with Matter

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