Investigation of driving plasma materials for laser acceleration of flyer plates
作者:
Jean-Louis Labaste,
Didier Brisset,
Michel Doucet,
期刊:
AIP Conference Proceedings
(AIP Available online 1900)
卷期:
Volume 505,
issue 1
页码: 1189-1192
ISSN:0094-243X
年代: 1900
DOI:10.1063/1.1303675
出版商: AIP
数据来源: AIP
摘要:
An experimental and analytical study of thin laser-accelerated flyer plates in a confined geometry is presented. Its objective is to improve the coupling efficiency between the flyer kinetic energy and the laser energy. Performed with a 7 &mgr;m thick aluminum flyer integrated in a three-layered target using a Nd:YAG laser (1.06 &mgr;m wavelength and a pulse duration of 8 ns FWHM), this study consists in finding the best ablating material of the first layer, responsible for the plasma generation. Flyer velocities between 2 and 5.5 km/s have been achieved for the 1–7 GW/cm2laser power density range. Best results yield coupling efficiencies of almost 50&percent;. ©2000 American Institute of Physics.
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