Symmetric compression of 'laser greenhouse' targets by a few laser beams
- P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)
- Institute of Mathematical Modelling, Russian Academy of Sciences, Moscow (Russian Federation)
- ICF Physics and Technology Lab., National Institute for Energy and Enviroment, Frascati (Italy)
The possibility of efficient and symmetric compression of a target with a low-density structured absorber by a few laser beams is considered. An equation of state is proposed for a porous medium, which takes into account the special features of the absorption of high-power nanosecond laser pulses. The open version of this target is shown to allow the use of ordinary Gaussian beams, requiring no special profiling of the absorber surface. The conditions are defined under which such targets can be compressed efficiently by only two laser beams (or beam clusters). Simulations show that for a 2.1-MJ laser pulse, a seven-fold gain for the target under study is achieved. (special issue devoted to the 80th anniversary of academician n g basov's birth)
- OSTI ID:
- 21470263
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Vol. 33, Issue 2; Other Information: DOI: 10.1070/QE2003v033n02ABEH002370; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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