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Proceedings Paper

Observation of critical self focusing during propagation of femtosecond light pulses in bulk media
Author(s): Piotr Wasylczyk; Wojciech Wasilewski; Marek Trippenbach; Czesław Radzewicz
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Paper Abstract

We present an experimental and theoretical study of the nonlinear propagation of 90 fs laser pulses at 800 nm in bulk fused silica. An unexpected behavior of the off-axis emission for pulse energy corresponding to the supercontinuum generation threshold has been discovered. Our model, based on 3D Nonlinear Schrodinger Equation, well explains the observed nonlinear dynamics. For the first time we experimentally confirm that the onset of the supercontinuum generation is inevitably accompanied by the pulse collapse in transverse dimensions.

Paper Details

Date Published: 6 October 2005
PDF: 5 pages
Proc. SPIE 5949, Nonlinear Optics Applications, 59491M (6 October 2005); doi: 10.1117/12.622554
Show Author Affiliations
Piotr Wasylczyk, Warsaw Univ. (Poland)
Wojciech Wasilewski, Warsaw Univ. (Poland)
Marek Trippenbach, Warsaw Univ. (Poland)
Czesław Radzewicz, Warsaw Univ. (Poland)


Published in SPIE Proceedings Vol. 5949:
Nonlinear Optics Applications
Miroslaw A. Karpierz; Allan Dawson Boardman; George I. Stegeman, Editor(s)

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