Plasma cathode preionized atmospheric pressure HF chemical laser

Y. Kalisky; K. Waichman; S. Kamin; D. Chuchem

doi:10.1016/S0030-4018(96)00759-6

Plasma cathode preionized atmospheric pressure HF chemical laser

Y. Kalisky, K. Waichman, S. Kamin, D. Chuchem

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

5 Scopus citations

Abstract

The performance of an electric discharge, plasma-cathode-preionized, atmospheric-pressure HF chemical laser was investigated and the laser was geometrically optimized. The preionization electron density was measured at atmospheric pressure in helium and in a mixture of SF₆ + H₂ diluted by helium. The measured preionization density is n_e ≈ 6.7 x 10⁹-2 x 10¹⁰ cm^-3, which is higher than the minimum critical density required for a self-sustained, homogeneous discharge of atmospheric-pressure electronegative gases. We have found improvement in laser specific energy for a diluted gas mixture of SF₆ + H₂ due to reduction in SF₆ concentration. The effects of inter-electrode gap height and plasma cathode grid width on laser performance were also investigated and are reported.

Original language	English
Pages (from-to)	59-63
Number of pages	5
Journal	Optics Communications
Volume	137
Issue number	1-3
DOIs	https://doi.org/10.1016/S0030-4018(96)00759-6
State	Published - 15 Apr 1997
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/S0030-4018(96)00759-6

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title = "Plasma cathode preionized atmospheric pressure HF chemical laser",

abstract = "The performance of an electric discharge, plasma-cathode-preionized, atmospheric-pressure HF chemical laser was investigated and the laser was geometrically optimized. The preionization electron density was measured at atmospheric pressure in helium and in a mixture of SF6 + H2 diluted by helium. The measured preionization density is ne ≈ 6.7 x 109-2 x 1010 cm-3, which is higher than the minimum critical density required for a self-sustained, homogeneous discharge of atmospheric-pressure electronegative gases. We have found improvement in laser specific energy for a diluted gas mixture of SF6 + H2 due to reduction in SF6 concentration. The effects of inter-electrode gap height and plasma cathode grid width on laser performance were also investigated and are reported.",

author = "Y. Kalisky and K. Waichman and S. Kamin and D. Chuchem",

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doi = "10.1016/S0030-4018(96)00759-6",

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T1 - Plasma cathode preionized atmospheric pressure HF chemical laser

AU - Kalisky, Y.

AU - Waichman, K.

AU - Kamin, S.

AU - Chuchem, D.

PY - 1997/4/15

Y1 - 1997/4/15

N2 - The performance of an electric discharge, plasma-cathode-preionized, atmospheric-pressure HF chemical laser was investigated and the laser was geometrically optimized. The preionization electron density was measured at atmospheric pressure in helium and in a mixture of SF6 + H2 diluted by helium. The measured preionization density is ne ≈ 6.7 x 109-2 x 1010 cm-3, which is higher than the minimum critical density required for a self-sustained, homogeneous discharge of atmospheric-pressure electronegative gases. We have found improvement in laser specific energy for a diluted gas mixture of SF6 + H2 due to reduction in SF6 concentration. The effects of inter-electrode gap height and plasma cathode grid width on laser performance were also investigated and are reported.

AB - The performance of an electric discharge, plasma-cathode-preionized, atmospheric-pressure HF chemical laser was investigated and the laser was geometrically optimized. The preionization electron density was measured at atmospheric pressure in helium and in a mixture of SF6 + H2 diluted by helium. The measured preionization density is ne ≈ 6.7 x 109-2 x 1010 cm-3, which is higher than the minimum critical density required for a self-sustained, homogeneous discharge of atmospheric-pressure electronegative gases. We have found improvement in laser specific energy for a diluted gas mixture of SF6 + H2 due to reduction in SF6 concentration. The effects of inter-electrode gap height and plasma cathode grid width on laser performance were also investigated and are reported.

UR - https://www.scopus.com/pages/publications/0031121377

U2 - 10.1016/S0030-4018(96)00759-6

DO - 10.1016/S0030-4018(96)00759-6

M3 - Article

AN - SCOPUS:0031121377

SN - 0030-4018

VL - 137

SP - 59

EP - 63

JO - Optics Communications

JF - Optics Communications

IS - 1-3

ER -

Plasma cathode preionized atmospheric pressure HF chemical laser

Abstract

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