Focusing of intense laser beam by a thin axially magnetized plasma lens

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3314720· OSTI ID:21347141

Ghorbanalilu, M ^[1]

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1. Department of Physics, Azarbaijan University of Tarbiat Moallem, Tabriz (Iran, Islamic Republic of)

Focusing of intense laser beams by a thin magnetized plasma slab is investigated. A thin plasma slab is used as an optical element. The focal length is the distance between the plasma lens and the laser beam focus point. The external magnetic field is applied along the direction of the laser field propagation. The nonlinear current density induced in the plasma lens is derived up to the third order of perturbation and the evolution of the spot size for a Gaussian beam profile is determined by making use of the variational principle approach method. It is shown that the axially magnetic field decreases the minimum spot size and increases the focal length significantly.

• OSTI ID: 21347141
• Journal Information: Physics of Plasmas, Vol. 17, Issue 2; Other Information: DOI: 10.1063/1.3314720; (c) 2010 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BEAM-PLASMA SYSTEMS
CURRENT DENSITY
ELECTROMAGNETIC LENSES
FOCUSING
LASER RADIATION
MAGNETIC FIELDS
NONLINEAR PROBLEMS
PLASMA
PLASMA CONFINEMENT
VARIATIONAL METHODS
CALCULATION METHODS
CONFINEMENT
ELECTROMAGNETIC RADIATION
LENSES
RADIATIONS