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- Title
Microdroplet Evolution Induced by a Laser Pulse.
- Authors
Smirnov, M.B.; Skobelev, I.Yu.; Magunov, A.I.; Faenov, A.Ya.; Pikuz, T.A.; Fukuda, Y.; Yamakawa, K.; Akahane, Y.; Aoyama, M.; Inoue, N.; Ueda, H.
- Abstract
Interaction between high-power ultrashort laser pulse and giant clusters (microdroplets) consisting of 109 to 1010 atoms is considered. The microdroplet size is comparable to the laser wavelength. A model of the evolution of a microdroplet plasma induced by a high-power laser pulse is developed, and the processes taking place after interaction with the pulse are analyzed. It is shown theoretically that the plasma is superheated: its temperature is approximately equal to the ionization potential of an ion having a typical charge. The microdroplet plasma parameters are independent of the pulse shape and duration. The theoretical conclusions are supported by experimental studies of x-ray spectra conducted at JAERI, where a 100-terawatt Ti–sapphire laser system was used to irradiate krypton and xenon microdroplets by laser pulses with pulse widths of 30 to 500 fs and intensities of 6×1016 to 2×1019W/cm2. © 2004 MAIK “Nauka / Interperiodica”.
- Subjects
ULTRASHORT laser pulses; LASERS; OPTOELECTRONIC devices; PLASMA gases; PHYSICS
- Publication
Journal of Experimental & Theoretical Physics, 2004, Vol 98, Issue 6, p1123
- ISSN
1063-7761
- Publication type
Article
- DOI
10.1134/1.1777624