Energy release in interactions of laser pulse with solid fuels and metals

Victor V. Vorobyov; Mikhail N. Libenson

doi:10.1117/12.48151

1 December 1991 Energy release in interactions of laser pulse with solid fuels and metals

Victor V. Vorobyov, Mikhail N. Libenson

Proceedings Volume 1440, Optical Radiation Interaction with Matter; (1991) https://doi.org/10.1117/12.48151
Event: Optical Radiation Interaction with Matter, 1990, Leningrad, Russian Federation

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.

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Victor V. Vorobyov and Mikhail N. Libenson "Energy release in interactions of laser pulse with solid fuels and metals", Proc. SPIE 1440, Optical Radiation Interaction with Matter, (1 December 1991); https://doi.org/10.1117/12.48151

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