Electronic excitation as a mode of heat dissipation in laser-driven cluster plasmas

Journal Article · Sun Dec 15 00:00:00 EST 2013 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4846935· OSTI ID:22218310

Rajeev, R.; Rishad, K. P. M.; Madhu Trivikram, T.; Krishnamurthy, M. ^[1]

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1. Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai-5 (India)

Electrons streaming out of laser plasma are known for non-local heat transport and energy deposition by the ionization wave. At 100 eV electron temperature, since the electronic excitation cross section is comparable to that of ionization for Ar and CO{sub 2}, a non-local excitation wave akin to the ionization wave is envisaged where energy deposition in excitations forms a excited cluster sheath beyond the laser focus. Here, we show that nano-cluster systems have the right parameters to form such an exciton sheath and experimentally demonstrate this via charge transfer reactions.

• OSTI ID: 22218310
• Journal Information: Physics of Plasmas, Vol. 20, Issue 12; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ARGON
CARBON DIOXIDE
COMPARATIVE EVALUATIONS
ELECTRON TEMPERATURE
ELECTRONS
ENERGY ABSORPTION
ENERGY LOSSES
EXCITATION
EXCITED STATES
HEAT TRANSFER
ION TEMPERATURE
IONIZATION
LASER-PRODUCED PLASMA
LASERS
PLASMA PRODUCTION
PLASMA SHEATH
THERMAL DIFFUSIVITY
THERMODYNAMICS