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Proceedings Paper

Explosive evaporation of Rb or K clusters by low-power laser radiation in the presence of excited atoms
Author(s): Anatoly Shalagin; Sergey Atutov; Roberto Calabrese; Luca Tomassetti; Vincenzo Guidi
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Paper Abstract

Explosive evaporation of metallic Rb or K clusters in the presence of excited atoms stimulated by resonant CW laser radiation has been observed in a glass cell. Evaporation occurs at low laser-power density. The effect consists of the generation of optically thick and sharply localized alkali vapor clouds propagating in the cell against the laser beam. The clouds are charged and exhibit a strong luminescence of Rb or K spectral lines. The explosive evaporation of metallic clusters is explained by the laser excitation of alkali atoms, which collide onto the surface of the clusters and transfer their internal energy, which thereby causes other atoms to be evaporated and to continue the avalanche process.

Paper Details

Date Published: 19 July 2007
PDF: 6 pages
Proc. SPIE 6726, ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information, 67260D (19 July 2007); doi: 10.1117/12.750139
Show Author Affiliations
Anatoly Shalagin, Institute of Automation and Electrometry (Russia)
Sergey Atutov, Istitito Nazionale di Fisica Nucleare (Italy)
Roberto Calabrese, Istitito Nazionale di Fisica Nucleare (Italy)
Luca Tomassetti, Istitito Nazionale di Fisica Nucleare (Italy)
Vincenzo Guidi, Istitito Nazionale di Fisica Nucleare (Italy)


Published in SPIE Proceedings Vol. 6726:
ICONO 2007: Physics of Intense and Superintense Laser Fields; Attosecond Pulses; Quantum and Atomic Optics; and Engineering of Quantum Information

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