This article is cited in 24 papers

Nonlinear optical phenomena

Highly efficient second-harmonic generation of intense femtosecond pulses with a significant effect of cubic nonlinearity

S. Yu. Mironov, V. N. Ginzburg, V. V. Lozhkarev, G. A. Luchinin, A. V. Kirsanov, I. V. Yakovlev, E. A. Khazanov, A. A. Shaikin

Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod

Abstract: A highly efficient (73 %) second-harmonic generation of femtosecond pulses in a 1-mm-thick KDP crystal at a fundamentalharmonic peak intensity of 2 TW cm^-2 has been demonstrated experimentally. In a 0.5-mm-thick KDP crystal, a 50 % efficiency has been reached at a peak intensity of 3.5 TW cm^-2. We examine the key factors that limit the conversion efficiency and present numerical simulation results on further temporal compression of second-harmonic pulses.

PACS: 42.65.Ky, 42.65.An, 42.65.Re, 42.70.Mp

Received: 13.07.2011
Revised: 09.09.2011

 English version: Quantum Electronics, 2011, 41:11, 963–967

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