Analytical model for interaction of short intense laser pulse with solid target

Journal Article · Fri Apr 15 00:00:00 EDT 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3577578· OSTI ID:21537649

Luan, S X; Ma, G J ^[1]; Yu, Wei ^[1]; Yu, M Y ^[2]; Zhang, Q J ^[3]; Sheng, Z M ^[4]; Murakami, M ^[5]

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1. Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)
2. Institute for Fusion Theory and Simulation, Zhejiang University, Hangzhou 310027 (China)
3. College of Physics and Electronics, Shandong Normal University, Jinan 250014 (China)
4. Department of Physics, Shanghai Jiao Tong University, Shanghai 200240 (China)
5. Institute of Laser Engineering, Osaka University, Osaka 565-0871 (Japan)

A simple but comprehensive two-dimensional analytical model for the interaction of a normally incident short intense laser pulse with a solid-density plasma is proposed. Electron cavitation near the target surface by the laser ponderomotive force induces a strong local electrostatic charge-separation field. The cavitation makes possible mode conversion of the laser light into longitudinal electron oscillation at laser frequency, even for initial normal incidence of laser pulse. The intense charge-separation field in the cavity can significantly enhance the laser induced uxB electron oscillation at twice laser frequency to density levels even higher than that of the initial target.

• OSTI ID: 21537649
• Journal Information: Physics of Plasmas, Vol. 18, Issue 4; Other Information: DOI: 10.1063/1.3577578; (c) 2011 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CAVITATION
LASERS
MODE CONVERSION
NONLINEAR PROBLEMS
PLASMA DENSITY
PLASMA WAVES
PONDEROMOTIVE FORCE
TWO-DIMENSIONAL CALCULATIONS