Propagation of chirped laser pulses in a plasma channel

Journal Article · Mon Jun 15 04:00:00 EDT 2009 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3157247· OSTI ID:21277250

Jha, Pallavi; Malviya, Amita; Upadhyay, Ajay K ^[1]

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

Propagation of an initially chirped, Gaussian laser pulse in a preformed parabolic plasma channel is analyzed. A variational technique is used to obtain equations describing the evolution of the phase shift and laser spot size. The effect of initial chirp on the laser pulse length and intensity of a matched laser beam propagating in a plasma channel has been analyzed. The effective pulse length and chirp parameter of the laser pulse due to its interaction with plasma have been obtained and graphically depicted. The resultant variation in laser frequency across the laser pulse is discussed.

• OSTI ID: 21277250
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 6 Vol. 16; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
LASER RADIATION
LIGHT TRANSMISSION
PHASE SHIFT
PLASMA
VARIATIONAL METHODS