Surface plasma wave excitation via laser irradiated overdense plasma foil

Journal Article · Mon Apr 09 00:00:00 EDT 2012 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3703592· OSTI ID:22025509

Kumar, Pawan; Tripathi, V K ^[1]

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1. Department of Physics, Indian Institute of Technology Delhi, New Delhi 110 016 (India)

A laser irradiated overdense plasma foil is seen to be susceptible to parametric excitation of surface plasma wave (SPW) and ion acoustic wave (IAW) on the ion plasma period time scale. The SPW is localised near the front surface of the foil while IAW extends upto the rear. The evanescent laser field and the SPW exert a ponderomotive force on electrons driving the IAW. The density perturbation associated with the latter beats with the laser induced oscillatory electron velocity to drive the SPW. At relativistic laser intensity, the growth rate is of the order of ion plasma frequency.

• OSTI ID: 22025509
• Journal Information: Applied Physics Letters, Vol. 100, Issue 15; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DISTURBANCES
ELECTRONS
EXCITATION
FOILS
ION ACOUSTIC WAVES
IONS
LANGMUIR FREQUENCY
LASER RADIATION
LASER-PRODUCED PLASMA
LIGHT TRANSMISSION
NONLINEAR PROBLEMS
PLASMA DENSITY
PONDEROMOTIVE FORCE
RELATIVISTIC RANGE
SURFACES