Observation and numerical analysis of plasma parameters in a capillary discharge-produced plasma channel waveguide

Journal Article · Tue Mar 01 00:00:00 EST 2011 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3560529· OSTI ID:21538139

Terauchi, Hiromitsu ^[1]; Bobrova, Nadezhda; Sasorov, Pavel ^[2]; Kikuchi, Takashi; Sasaki, Toru ^[3]; Higashiguchi, Takeshi; Yugami, Noboru ^[1]; Kodama, Ryosuke ^[4]

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1. Department of Advanced Interdisciplinary Sciences, and Center for Optical Research and Education (CORE) Utsunomiya University, Yoto 7-1-2, Utsunomiya, Tochigi 321-8585 (Japan)
2. Institute for Theoretical and Experimental Physics, B. Cheremushkinskaya str. 25, 117259 Moscow (Russian Federation)
3. Department of Electrical Engineering, Nagaoka University of Technology, Kami-tomiokamachi 1603-1, Nagaoka, Niigata 940-2188 Japan (Japan)
4. Japan Science and Technology Agency, CREST, 4-1-8 Honcho, Kanagawa, Saitama 332-0012 (Japan)

We observed the parameters of the discharge-produced plasma in cylindrical capillary. Plasma parameters of the waveguide were investigated by use of both a Normarski laser interferometer and a hydrogen plasma line spectrum. A space-averaged maximum temperature of 3.3 eV with electron densities of the order of 10{sup 17} cm{sup -3} was observed at a discharge time of 150 ns and a maximum discharge current of 200 A. One-dimensional dissipative magnetohydrodynamic (MHD) code was used to analyze the discharge dynamics in the gas-filled capillary discharge waveguide for high-intensity laser pulses. Simulations were performed for the conditions of the experiment. We compared the temporal behavior of the electron temperature and the radial electron density profiles, measured in the experiment with the results of the numerical simulations. They occurred to be in a good agreement. An ultrashort, intense laser pulse was guided by use of this plasma channel.

• OSTI ID: 21538139
• Journal Information: Journal of Applied Physics, Vol. 109, Issue 5; Other Information: DOI: 10.1063/1.3560529; (c) 2011 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CAPILLARIES
COMPUTERIZED SIMULATION
ELECTRIC DISCHARGES
ELECTRON DENSITY
ELECTRON TEMPERATURE
HYDROGEN
INTERACTIONS
INTERFEROMETERS
ION TEMPERATURE
LASER RADIATION
LIGHT TRANSMISSION
MAGNETOHYDRODYNAMICS
MASS SPECTROSCOPY
NUMERICAL ANALYSIS
PLASMA
PLASMA DENSITY
PLASMA SIMULATION
SPECTRA
STABILITY
WAVEGUIDES
BLOOD VESSELS
BODY
CARDIOVASCULAR SYSTEM
ELECTROMAGNETIC RADIATION
ELEMENTS
FLUID MECHANICS
HYDRODYNAMICS
MATHEMATICS
MEASURING INSTRUMENTS
MECHANICS
NONMETALS
ORGANS
RADIATIONS
SIMULATION
SPECTROSCOPY
TRANSMISSION