High-speed optical studies of the driving plasma in laser acceleration of flyer plates
- Sandia National Laboratories, Albuquerque, New Mexico 87185-0834 (United States)
High-speed optical methods have been used to study several characteristics of the high-temperature driving plasma in laser acceleration of flyers with optical fiber coupling. Flyer materials examined include pure aluminum and composite targets containing an insulating layer of Al{sub 2}O{sub 3}. Results from fast-gated spectroscopy show that silicon appears early in the plasma spectrum, indicating that the coupling fiber material plays an active role in flyer acceleration. Plasma emission persists longer and pressure broadening of discrete lines decays more slowly in the launch of composite flyers. Fast-gated spectroscopy has also been used in conjunction with very thin ({open_quotes}trace{close_quotes}) metal layers deposited in the target fabrication process to examine the depth of ablation by the driving plasma. {copyright} {ital 1996 American Institute of Physics.}
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 561798
- Report Number(s):
- CONF-950846-; ISSN 0094-243X; TRN: 98:001004
- Journal Information:
- AIP Conference Proceedings, Vol. 370, Issue 1; Conference: American Physical Society biennial conference on shock compression of condensed matter, Seattle, WA (United States), 13-18 Aug 1995; Other Information: PBD: May 1996
- Country of Publication:
- United States
- Language:
- English
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