Nonlinear optical phenomena

Influence of the Dember effect on second harmonic generation upon reflection of Ti:sapphire laser radiation from silicon

I. M. Baranova, K. N. Evtyukhov, A. N. Murav'ev

Bryansk State Engineering and Technological Academy

Abstract: Electronic processes stimulated in a silicon volume by a megahertz train of femtosecond pulses from a Ti:sapphire laser are studied theoretically. The spatial distribution of a photoinduced potential in the silicon volume is calculated. It is shown that this potential can considerably change a voltage applied to the near-surface region of a space charge, thereby affecting the generation of the reflected second harmonic.

PACS: 42.65.Ky, 42.70.Nq

Received: 11.10.2004
Revised: 28.03.2005

 English version: Quantum Electronics, 2005, 35:6, 520–524

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