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Author Kandidov, V. P. ♦ Golubtsov, I. S. ♦ Kosareva, O. G.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword 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
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)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2004-04-30
Publisher Place United States
Journal Quantum Electronics
Volume Number 34
Issue Number 4


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