Surface effects in laser interaction with overdense plasmas

Details Surface effects in laser interaction with overdense plasmas Surface effects in laser interaction with overdense plasmas

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aipc..611..210m&link_type=abstract

SUPERSTRONG FIELDS IN PLASMAS: Second International Conference on Superstrong Fields in Plasmas, Second International Conference

Other

X-Ray, Gamma-Ray, And Particle Generation, Electromagnetic Waves, Particle-In-Cell Method, Nonlinear Phenomena: Waves, Wave Propagation, And Other Interactions

Scientific paper

The dynamics and generation of surface structures in intense laser interaction with overdense plasmas is studied numerically and analytically. The dynamics of two-dimensional (2D) electron surface oscillations (ESOs) has been resolved in particle-in-cell simulations, showing a ``period doubling'' effect with respect to the driving magnetic force of the laser. A new parametric process, in which a 1D electrostatic oscillation decays into two electromagnetic surface waves, has been investigated analytically and provides a mechanism for the generation of ESOs. For oblique laser incidence and p-polarization generation of subharmonic surface waves is also predicted. The possible impact of surface deformations on fast electron generation and disruption of plasma ``moving mirrors'' for high harmonic generation is discussed. .

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