Plasma Parameter of a Capillary Discharge-Produced Plasma Channel to Guide an Ultrashort Laser Pulse

Journal Article · Thu Jan 22 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3080897· OSTI ID:21255211

Higashiguchi, Takeshi; Terauchi, Hiromitsu; Bai, Jin-xiang; Yugami, Noboru ^[1]

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1. Department of Energy and Environmental Science, Graduate School of Engineering, and Center for Optical Research and Education (CORE), Utsunomiya University, Yoto 7-1-2, Utsunomiya 321-8585 (Japan)

We have observed the optical guiding of a 100-fs laser pulse with the laser intensity in the range of 10{sup 16} W/cm{sup 2} using a 1.5-cm long capillary discharge-produced plasma channel for compact electron acceleration applications. The optical pulse propagation using the plasma channel is achieved with the electron densities of 10{sup 17}-10{sup 18} cm{sup -3} and the electron temperatures of 0.5-4 eV at a discharge time delay of around 150 ns and a discharge current of 500 A with a pulse duration of 100-150 ns. An energy spectrum of the accelerated electrons from a laser-plasma acceleration scheme showed a peak at 1.3 MeV with a maximum energy tail of 1.6 MeV.

• OSTI ID: 21255211
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1086; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATORS
CAPILLARIES
ELECTRON DENSITY
ELECTRON TEMPERATURE
ELECTRONS
ENERGY SPECTRA
EV RANGE 01-10
LASERS
MEV RANGE 01-10
PLASMA
PLASMA ACCELERATION
PLASMA PRODUCTION
PULSES
TIME DELAY