A. I. Aristov, Ya. V. Grudtsyn, L. D. Mikheev, A. V. Polivin, S. G. Stepanov, V. A. Trofimov, V. I. Yalovoi, “Spectral broadening and self-compression of negatively chirped visible femtosecond pulses in fused silica”, Kvantovaya Elektronika, 2012, Volume 42, Number 12,Pages <nobr>1097

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Spectral broadening and self-compression of negatively chirped visible femtosecond pulses in fused silica

A. I. Aristov^a, Ya. V. Grudtsyn^a, L. D. Mikheev^a, A. V. Polivin^a, S. G. Stepanov^a, V. A. Trofimov^b, V. I. Yalovoi^a

^a P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
^b Lomonosov Moscow State University

Abstract: This paper describes a new effect: spectral broadening and self-compression of negatively chirped visible femtosecond pulses as a result of nonlinear interaction of large-aperture beams with fused silica. We assume that the likely mechanism of the observed spectral broadening is the combined effect of self-phase modulation and four-wave mixing.

Keywords: negatively chirped femtosecond pulse, self-compression, self-phase modulation, four-wave mixing.

PACS: 42.65.Re, 42.65.Jx, 42.65.Ky

Received: 20.11.2012