Characteristics of intense laser self-focusing in a plasma channel

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Propagation of ultrashort intense laser pulses in a partially stripped pre-formed plasma channel, which is assumed to base a parabolic refractive index and to be unperturbed, is analyzed. The refractive index equation is derived and includes the effects of the third-order intensity-dependent nonlinearity, the self-guiding of the plasma channel, and the relativistic self-focusing. The envelope equation and the relation between the propagation distance and the laser spot size are derived based on the Hamilton-Jacobi equation and the refractive index equation. The potential well, including the effects of the diffraction, the third-order nonlinearity, the relativistic self-focusing, and the plasma channel, is discussed in detail.
Publisher
KOREAN PHYSICAL SOC
Issue Date
2002
Language
English
Article Type
Article
Keywords

PROPAGATION; MODULATION; PULSES

Citation

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, v.41, pp.710 - 713

ISSN
0374-4884
URI
http://hdl.handle.net/10203/78795
Appears in Collection
PH-Journal Papers(저널논문)
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