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Development of a high-power KrF laser system, ASHURA

Published online by Cambridge University Press:  09 March 2009

Y. Owadano ,
I. Okuda ,
Y. Matsumoto ,
M. Tanimoto ,
T. Tomie ,
K. Koyama  and
M. Yano
Y. Owadano
Affiliation:
Electrotechnical Laboratory, Agency of Industrial Science and Technology, 1-1-4 Umezono, Tsukuba, Ibaraki, Japan 305
I. Okuda
Affiliation:
Electrotechnical Laboratory, Agency of Industrial Science and Technology, 1-1-4 Umezono, Tsukuba, Ibaraki, Japan 305
Y. Matsumoto
Affiliation:
Electrotechnical Laboratory, Agency of Industrial Science and Technology, 1-1-4 Umezono, Tsukuba, Ibaraki, Japan 305
M. Tanimoto
Affiliation:
Electrotechnical Laboratory, Agency of Industrial Science and Technology, 1-1-4 Umezono, Tsukuba, Ibaraki, Japan 305
T. Tomie
Affiliation:
Electrotechnical Laboratory, Agency of Industrial Science and Technology, 1-1-4 Umezono, Tsukuba, Ibaraki, Japan 305
K. Koyama
Affiliation:
Electrotechnical Laboratory, Agency of Industrial Science and Technology, 1-1-4 Umezono, Tsukuba, Ibaraki, Japan 305
M. Yano
Affiliation:
Electrotechnical Laboratory, Agency of Industrial Science and Technology, 1-1-4 Umezono, Tsukuba, Ibaraki, Japan 305
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Abstract

The present status of the development of a high-power KrF laser system, Ashura, is described. The main amplifier has generated 710 J (95 ns) at the pumping density of 1·lMW/cm3 with the wall plug efficiency of 2·0%. Maximum power of 9·0 GW (200 J/22 ns) per beam has been obtained from the beam lines of six-time pulse multiplexing. Power density of 1 × 1014 W/cm2 has been achieved on target with a 10−6 pre-pulse.

Type
Research Article
Information
Laser and Particle Beams , Volume 7 , Issue 3 , August 1989 , pp. 383 - 392
Copyright
Copyright © Cambridge University Press 1989

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