This article is cited in 1 paper

Interaction of laser radiation with matter

Propagation of Nd-laser pulses through crystalline silicon wafers

N. A. Kirichenko, P. G. Kuzmin, M. E. Shcherbina

Wave Research Center of Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow

Abstract: Propagation of pulses from an Nd:YAG laser (wavelength, 1.064 μm; pulse duration, 270 ns; pulse energy, 225 μJ) through crystalline silicon wafers is studied experimentally. Mathematical modelling of the process is performed: the heat conduction equation is solved numerically, the temperature dependences of the absorption and refraction of a substance, as well as generation of nonequilibrium carriers by radiation are taken into account. The constructed model satisfactorily explains the experimentally observed intensity oscillations of transmitted radiation.

PACS: 78.40.Fy, 72.80.Cw, 42.55.Rz

Received: 06.12.2010
Revised: 23.02.2011

 English version: Quantum Electronics, 2011, 41:7, 626–630

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