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3d particle simulations on ultra short laser interaction

Abstract

Two topics related to ultra short laser interaction with matter, linear and nonlinear high frequency conductivity of a solid density hydrogen plasma and anisotropic self-focusing of an intense laser in an overdense plasma, have been investigated with the use of 3-d particle codes. Frequency dependence of linear conductivity in a dense plasma is obtained, which shows anomalous conductivity near plasma frequency. Since nonlinear conductivity decreases with v{sub o}{sup -3}, where v{sub o} is a quivering velocity, an optimum amplitude exists leading to a maximum electron heating. Anisotropic self-focusing of a linear polarized intense laser is observed in an overdense plasma. (author)
Authors:
Nishihara, Katsunobu; Okamoto, Takashi; Yasui, Hidekazu [1] 
  1. Osaka Univ., Suita (Japan). Inst. of Laser Engineering
Publication Date:
Mar 01, 1998
Product Type:
Conference
Report Number:
JAERI-Conf-98-004; CONF-9707120-
Reference Number:
SCA: 700350; PA: JPN-98:011205; EDB-99:022185; SN: 99002049909
Resource Relation:
Conference: 1. JAERI-Kansai international workshop on ultrashort-pulse ultrahigh-power lasers and simulation for laser-plasma interactions, Kyoto (Japan), 14-18 Jul 1997; Other Information: PBD: Mar 1998; Related Information: Is Part Of Proceedings of the first JAERI-Kansai international workshop on ultrashort-pulse ultrahigh-power lasers and simulation for laser-plasma interactions; PB: 200 p.
Subject:
70 PLASMA PHYSICS AND FUSION; COMPUTERIZED SIMULATION; LASERS; THREE-DIMENSIONAL CALCULATIONS; LASER-PRODUCED PLASMA; PHOTON TRANSPORT; OPTICAL PROPERTIES; S CODES; FOCUSING; WAVE PROPAGATION; LASER RADIATION; ELECTRIC CONDUCTIVITY; NONLINEAR PROBLEMS; PLASMA SIMULATION
OSTI ID:
307663
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE99701543; TRN: JP9811205
Availability:
OSTI as DE99701543
Submitting Site:
JPN
Size:
pp. 52-57
Announcement Date:

Citation Formats

Nishihara, Katsunobu, Okamoto, Takashi, and Yasui, Hidekazu. 3d particle simulations on ultra short laser interaction. Japan: N. p., 1998. Web.
Nishihara, Katsunobu, Okamoto, Takashi, & Yasui, Hidekazu. 3d particle simulations on ultra short laser interaction. Japan.
Nishihara, Katsunobu, Okamoto, Takashi, and Yasui, Hidekazu. 1998. "3d particle simulations on ultra short laser interaction." Japan.
@misc{etde_307663,
title = {3d particle simulations on ultra short laser interaction}
author = {Nishihara, Katsunobu, Okamoto, Takashi, and Yasui, Hidekazu}
abstractNote = {Two topics related to ultra short laser interaction with matter, linear and nonlinear high frequency conductivity of a solid density hydrogen plasma and anisotropic self-focusing of an intense laser in an overdense plasma, have been investigated with the use of 3-d particle codes. Frequency dependence of linear conductivity in a dense plasma is obtained, which shows anomalous conductivity near plasma frequency. Since nonlinear conductivity decreases with v{sub o}{sup -3}, where v{sub o} is a quivering velocity, an optimum amplitude exists leading to a maximum electron heating. Anisotropic self-focusing of a linear polarized intense laser is observed in an overdense plasma. (author)}
place = {Japan}
year = {1998}
month = {Mar}
}