Xenon microdischarge at 300-800 torr: Laser spectroscopy of Xe2 a3∑u+ (1u, 0u-)

Clark J. Wagner; J. Gary Eden

doi:10.1109/TPS.2005.845287

Xenon microdischarge at 300-800 torr: Laser spectroscopy of Xe₂ a³∑_u⁺ (1_u, 0_u^-)

Clark J. Wagner, J. Gary Eden

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Spatially uniform microdischarges in Xe at pressures of 300-800 torr have been produced in a 90-μm gap between 1.5-mm-diameter tungsten rods (plasma volume of ∼160 μL), and applied to the laser spectroscopy of the Xe₂ excimer. Calculations and spectral simulations indicate that the gas temperature in the plasma reaches 900 K for a steady-state current density of 0.23 A-cm^-2. Laser-induced, fluorescence suppression spectroscopy in the afterglow of the crow-barred discharge reveals well-developed vibrational bands in the 680-800-nm region tentatively attributed to 5 (1_g) ← a³ ∑_u⁺ (1_u, 0_u^-) transitions of Xe₂.

Original language	English (US)
Pages (from-to)	568-569
Number of pages	2
Journal	IEEE Transactions on Plasma Science
Volume	33
Issue number	2 I
DOIs	https://doi.org/10.1109/TPS.2005.845287
State	Published - Apr 2005

Keywords

Laser spectroscopy
Microdischarge
Molecular spectroscopy

ASJC Scopus subject areas

Nuclear and High Energy Physics
Condensed Matter Physics

Online availability

10.1109/TPS.2005.845287

Library availability

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Cite this

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title = "Xenon microdischarge at 300-800 torr: Laser spectroscopy of Xe2 a3∑u+ (1u, 0u-)",

abstract = "Spatially uniform microdischarges in Xe at pressures of 300-800 torr have been produced in a 90-μm gap between 1.5-mm-diameter tungsten rods (plasma volume of ∼160 μL), and applied to the laser spectroscopy of the Xe2 excimer. Calculations and spectral simulations indicate that the gas temperature in the plasma reaches 900 K for a steady-state current density of 0.23 A-cm-2. Laser-induced, fluorescence suppression spectroscopy in the afterglow of the crow-barred discharge reveals well-developed vibrational bands in the 680-800-nm region tentatively attributed to 5 (1g) ← a3 ∑u+ (1u, 0u-) transitions of Xe2.",

keywords = "Laser spectroscopy, Microdischarge, Molecular spectroscopy",

author = "Wagner, {Clark J.} and Eden, {J. Gary}",

note = "Funding Information: Manuscript received July 2, 2004; revised December 15, 2004. This work was supported by the U.S. Air Force Office of Scientific Research under Grant F49620-03-1-0391. The authors are with the Laboratory for Optical Physics and Engineering, Department of Electrical and Computer Engineering, University of Illinois, Urbana, IL 61801 USA (e-mail: jgeden@uiuc.edu). Digital Object Identifier 10.1109/TPS.2005.845287",

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T2 - Laser spectroscopy of Xe2 a3∑u+ (1u, 0u-)

AU - Wagner, Clark J.

AU - Eden, J. Gary

N1 - Funding Information: Manuscript received July 2, 2004; revised December 15, 2004. This work was supported by the U.S. Air Force Office of Scientific Research under Grant F49620-03-1-0391. The authors are with the Laboratory for Optical Physics and Engineering, Department of Electrical and Computer Engineering, University of Illinois, Urbana, IL 61801 USA (e-mail: jgeden@uiuc.edu). Digital Object Identifier 10.1109/TPS.2005.845287

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N2 - Spatially uniform microdischarges in Xe at pressures of 300-800 torr have been produced in a 90-μm gap between 1.5-mm-diameter tungsten rods (plasma volume of ∼160 μL), and applied to the laser spectroscopy of the Xe2 excimer. Calculations and spectral simulations indicate that the gas temperature in the plasma reaches 900 K for a steady-state current density of 0.23 A-cm-2. Laser-induced, fluorescence suppression spectroscopy in the afterglow of the crow-barred discharge reveals well-developed vibrational bands in the 680-800-nm region tentatively attributed to 5 (1g) ← a3 ∑u+ (1u, 0u-) transitions of Xe2.

AB - Spatially uniform microdischarges in Xe at pressures of 300-800 torr have been produced in a 90-μm gap between 1.5-mm-diameter tungsten rods (plasma volume of ∼160 μL), and applied to the laser spectroscopy of the Xe2 excimer. Calculations and spectral simulations indicate that the gas temperature in the plasma reaches 900 K for a steady-state current density of 0.23 A-cm-2. Laser-induced, fluorescence suppression spectroscopy in the afterglow of the crow-barred discharge reveals well-developed vibrational bands in the 680-800-nm region tentatively attributed to 5 (1g) ← a3 ∑u+ (1u, 0u-) transitions of Xe2.

KW - Laser spectroscopy

KW - Microdischarge

KW - Molecular spectroscopy

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