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Bandwidth effects on laser–plasma interaction with a ¼-μm laser

Published online by Cambridge University Press:  09 March 2009

H. Yoneda ,
T. Miura ,
Y. Yokota ,
Y. Motoki ,
A. Sasaki ,
K. Ueda  and
H. Takuma
H. Yoneda
Affiliation:
University of Electro-Communications, Institute for Laser Science, 1–5–1 Chofugaoka, Chofushi, Tokyo 182, Japan
T. Miura
Affiliation:
University of Electro-Communications, Institute for Laser Science, 1–5–1 Chofugaoka, Chofushi, Tokyo 182, Japan
Y. Yokota
Affiliation:
University of Electro-Communications, Institute for Laser Science, 1–5–1 Chofugaoka, Chofushi, Tokyo 182, Japan
Y. Motoki
Affiliation:
University of Electro-Communications, Institute for Laser Science, 1–5–1 Chofugaoka, Chofushi, Tokyo 182, Japan
A. Sasaki
Affiliation:
University of Electro-Communications, Institute for Laser Science, 1–5–1 Chofugaoka, Chofushi, Tokyo 182, Japan
K. Ueda
Affiliation:
University of Electro-Communications, Institute for Laser Science, 1–5–1 Chofugaoka, Chofushi, Tokyo 182, Japan
H. Takuma
Affiliation:
University of Electro-Communications, Institute for Laser Science, 1–5–1 Chofugaoka, Chofushi, Tokyo 182, Japan
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Abstract

Bandwidth effects on laser-plasma interaction were investigated with a ¼-μm laser. Planar targets were irradiated with a 1- to 40-cm–1 bandwidth laser at I = 1 × 1013–4 × 1015 W/cm2. Above 3 × 1013 W/cm2, stimulated Brillouin scattering (SBS) was observed with 1 cm–1 light. This process was strongly reduced with a 40-cm–1 light. Evolution of the convective SBS was studied with 1-D fluid simulation code. Bandwidth effect on the SBS growth was discussed to compare the theoretical prediction and experimental results. The scalelength dependence exists for the SBS reduction with a broadband laser.

Type
Research Article
Information
Laser and Particle Beams , Volume 11 , Issue 1 , March 1993 , pp. 15 - 23
Copyright
Copyright © Cambridge University Press 1993

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References

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