Collapse dynamics of super-Gaussian beams

Taylor D. Grow; Amiel A. Ishaaya; Luat T. Vuong; Alexander L. Gaeta; Nir Gavish; Gadi Fibich

doi:10.1364/OE.14.005468

Collapse dynamics of super-Gaussian beams

Taylor D. Grow, Amiel A. Ishaaya, Luat T. Vuong, Alexander L. Gaeta, Nir Gavish, Gadi Fibich

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

118 Scopus citations

Abstract

We investigate the self-focusing dynamics of super-Gaussian optical beams in a Kerr medium. We find that up to several times the critical power for self-focusing, super-Gaussian beams evolve towards a Townes profile. At higher powers the super-Gaussian beams form rings which break into filaments as a result of noise. Our results are consistent with the observed self-focusing dynamics of femtosecond laser pulses in air [1] in which filaments are formed along a ring about the axis of the initial beam where the initial beam did not form a ring.

Original language	English
Pages (from-to)	5468-5475
Number of pages	8
Journal	Optics Express
Volume	14
Issue number	12
DOIs	https://doi.org/10.1364/OE.14.005468
State	Published - 1 Jan 2006
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "We investigate the self-focusing dynamics of super-Gaussian optical beams in a Kerr medium. We find that up to several times the critical power for self-focusing, super-Gaussian beams evolve towards a Townes profile. At higher powers the super-Gaussian beams form rings which break into filaments as a result of noise. Our results are consistent with the observed self-focusing dynamics of femtosecond laser pulses in air [1] in which filaments are formed along a ring about the axis of the initial beam where the initial beam did not form a ring.",

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AU - Grow, Taylor D.

AU - Ishaaya, Amiel A.

AU - Vuong, Luat T.

AU - Gaeta, Alexander L.

AU - Gavish, Nir

AU - Fibich, Gadi

PY - 2006/1/1

Y1 - 2006/1/1

N2 - We investigate the self-focusing dynamics of super-Gaussian optical beams in a Kerr medium. We find that up to several times the critical power for self-focusing, super-Gaussian beams evolve towards a Townes profile. At higher powers the super-Gaussian beams form rings which break into filaments as a result of noise. Our results are consistent with the observed self-focusing dynamics of femtosecond laser pulses in air [1] in which filaments are formed along a ring about the axis of the initial beam where the initial beam did not form a ring.

AB - We investigate the self-focusing dynamics of super-Gaussian optical beams in a Kerr medium. We find that up to several times the critical power for self-focusing, super-Gaussian beams evolve towards a Townes profile. At higher powers the super-Gaussian beams form rings which break into filaments as a result of noise. Our results are consistent with the observed self-focusing dynamics of femtosecond laser pulses in air [1] in which filaments are formed along a ring about the axis of the initial beam where the initial beam did not form a ring.

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DO - 10.1364/OE.14.005468

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JO - Optics Express

JF - Optics Express

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ER -

Collapse dynamics of super-Gaussian beams

Abstract

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