Nonlinear propagation of sinusoidal pulse laser beam in homogeneous plasma

Journal Article · Sat Sep 15 00:00:00 EDT 2007 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2778415· OSTI ID:21069845

Upadhyay, Ajay K; Raj, Gaurav; Mishra, Rohit K; Malviya, Amita; Jha, Pallavi ^[1]

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1. Department of Physics, University of Lucknow, Lucknow 226007 (India)

The propagation of an intense laser beam, having a sinusoidal pulse profile, in underdense plasma, is analyzed. Applying variational technique and using a standard trial function for the laser pulse amplitude, simultaneous equations describing the evolution of pulse length and spot size are obtained. Relativistic nonlinearity, finite pulse length, and group velocity dispersion effects have been taken into account. Using numerical methods, a graphical analysis of simultaneous evolution of laser spot size and pulse length is presented.

• OSTI ID: 21069845
• Journal Information: Physics of Plasmas, Vol. 14, Issue 9; Other Information: DOI: 10.1063/1.2778415; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
BEAM-PLASMA SYSTEMS
HOMOGENEOUS PLASMA
LASER RADIATION
LASERS
LENGTH
LIGHT TRANSMISSION
NONLINEAR OPTICS
NONLINEAR PROBLEMS
PULSES
RELATIVISTIC RANGE
VARIATIONAL METHODS