Anomalous absorption and scattering of short-pulse high-intensity lasers in underdense plasmas

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.3332· OSTI ID:285652

Tzeng, K; Mori, W B ^[1]; Decker, C D ^[2]

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1. Departments of Physics and Electrical Engineering, University of California, Los Angeles, California 90095 (United States)
2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

The propagation of short-pulse lasers through several Rayleigh lengths of underdense plasma [(1{endash}4){percent} {ital n}{sub cr}] is studied using multidimensional fully explicit particle-in-cell simulations. The simulations model 80 to 600 fs, 1 {mu}m wavelength pulses in the intensity range of 1.5{times}10{sup 17} to 3.5{times}10{sup 19} W/cm{sup 2}. A detailed account is given for the energy lost out of the focal cone due to a combination of collective absorption and scattering losses. The figure of merit for the nonlinear transmission losses of a given pulse length is the amount of Raman forward scattering exponentiation within a Rayleigh length. {copyright}{ital 1996 The American Physical Society.}

• OSTI ID: 285652
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ABSORPTION
ENERGY LOSSES
LASERS
PLASMA
RAMAN EFFECT
RAYLEIGH SCATTERING
SCATTERING
SIMULATION
TRANSMISSION
WAVE PROPAGATION
WAVELENGTHS