Axial emission and spectral broadening in self-focusing of femtosecond Bessel beams

被引：31

作者：

Dubietis, A.

Polesana, P.

Valiulis, G.

Stabinis, A.

Di Trapani, P.

Piskarskas, A.

机构：

[1] Vilnius State Univ, Dept Quantum Elect, LT-10222 Vilnius, Lithuania

[2] Univ Insubria, Dept Phys, IT-22100 Como, Italy

[3] Univ Insubria, INFM, IT-22100 Como, Italy

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 07期

关键词：

D O I：

10.1364/OE.15.004168

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the experimental observations of on-axis spectral broadening arising from self-focusing of the axicon-generated femtosecond Bessel beam in water. The observed spectral broadening is interpreted by a nonlinearly phase-matched four-wave mixing process involving the intense conical pump, the axial signal and a conical idler wave. (c) 2007 Optical Society of America.

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页码：4168 / 4175

页数：8

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