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Title: Supercontinuum sources in a high-power femtosecond laserpulse propagating in liquids and gases

Abstract

The mechanism of supercontinuum generation and the spatial distribution of its sources during the propagation of a high-power femtosecond laser pulse in liquids and gases are studied. The numerical simulation shows that the supercontinuum is generated due to self-phase modulation of the laser pulse in space and time in the presence of nonlinearity and wave effects. Supercontinuum sources are found to be located mainly in the ring structure of the laser pulse at the intensity minima. It is established that the efficiency of generation of the short-wavelength part of the supercontinuum during the propagation of the focused laser beam depends on the initial phase modulation and achieves a maximum when the compression length slightly exceeds the length of nonlinear focusing. (nonlinear optical phenomena)

Authors:
 [1]; ;  [2]
  1. Department of Physics, M.V. Lomonosov Moscow State University, Moscow (Russian Federation)
  2. International Laser Center, M. V. Lomonosov Moscow State University, Moscow (Russian Federation)
Publication Date:
OSTI Identifier:
21470512
Resource Type:
Journal Article
Journal Name:
Quantum Electronics (Woodbury, N.Y.)
Additional Journal Information:
Journal Volume: 34; Journal Issue: 4; Other Information: DOI: 10.1070/QE2004v034n04ABEH002679; Journal ID: ISSN 1063-7818
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPUTERIZED SIMULATION; FOCUSING; GASES; LIQUIDS; MODULATION; NONLINEAR PROBLEMS; PHOTON BEAMS; PULSES; SPATIAL DISTRIBUTION; WAVE PROPAGATION; WAVELENGTHS; BEAMS; DISTRIBUTION; FLUIDS; SIMULATION

Citation Formats

Kandidov, V P, Golubtsov, I S, and Kosareva, O G. Supercontinuum sources in a high-power femtosecond laserpulse propagating in liquids and gases. United States: N. p., 2004. Web. doi:10.1070/QE2004V034N04ABEH002679.
Kandidov, V P, Golubtsov, I S, & Kosareva, O G. Supercontinuum sources in a high-power femtosecond laserpulse propagating in liquids and gases. United States. doi:10.1070/QE2004V034N04ABEH002679.
Kandidov, V P, Golubtsov, I S, and Kosareva, O G. Fri . "Supercontinuum sources in a high-power femtosecond laserpulse propagating in liquids and gases". United States. doi:10.1070/QE2004V034N04ABEH002679.
@article{osti_21470512,
title = {Supercontinuum sources in a high-power femtosecond laserpulse propagating in liquids and gases},
author = {Kandidov, V P and Golubtsov, I S and Kosareva, O G},
abstractNote = {The mechanism of supercontinuum generation and the spatial distribution of its sources during the propagation of a high-power femtosecond laser pulse in liquids and gases are studied. The numerical simulation shows that the supercontinuum is generated due to self-phase modulation of the laser pulse in space and time in the presence of nonlinearity and wave effects. Supercontinuum sources are found to be located mainly in the ring structure of the laser pulse at the intensity minima. It is established that the efficiency of generation of the short-wavelength part of the supercontinuum during the propagation of the focused laser beam depends on the initial phase modulation and achieves a maximum when the compression length slightly exceeds the length of nonlinear focusing. (nonlinear optical phenomena)},
doi = {10.1070/QE2004V034N04ABEH002679},
journal = {Quantum Electronics (Woodbury, N.Y.)},
issn = {1063-7818},
number = 4,
volume = 34,
place = {United States},
year = {2004},
month = {4}
}