Self-focusing collapse distance in ultrashort pulses and measurement of nonlinear index

P. Whalen; J. V. Moloney; M. Kolesik

doi:10.1364/OL.36.002542

Self-focusing collapse distance in ultrashort pulses and measurement of nonlinear index

P. Whalen, J. V. Moloney, M. Kolesik

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

We analyze the method of moving focus to determine the critical power for self-focusing by means of numerical simulation and a semianalytical model. It is shown that the original interpretation of a moving focus experiment does not hold in general and that inclusion of defocusing effects due to free electrons is necessary to relate the measured data to critical power.

Original language	English (US)
Pages (from-to)	2542-2544
Number of pages	3
Journal	Optics letters
Volume	36
Issue number	13
DOIs	https://doi.org/10.1364/OL.36.002542
State	Published - Jul 1 2011

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.36.002542

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abstract = "We analyze the method of moving focus to determine the critical power for self-focusing by means of numerical simulation and a semianalytical model. It is shown that the original interpretation of a moving focus experiment does not hold in general and that inclusion of defocusing effects due to free electrons is necessary to relate the measured data to critical power.",

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AU - Moloney, J. V.

AU - Kolesik, M.

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AB - We analyze the method of moving focus to determine the critical power for self-focusing by means of numerical simulation and a semianalytical model. It is shown that the original interpretation of a moving focus experiment does not hold in general and that inclusion of defocusing effects due to free electrons is necessary to relate the measured data to critical power.

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Self-focusing collapse distance in ultrashort pulses and measurement of nonlinear index

Abstract

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