Effect of geometry and preionization conditions on the performance of atmospheric pressure HF chemical laser

Yehoshua Y. Kalisky; Karol Waichman; S. Kamin; D. Chuchem

doi:10.1117/12.236869

Effect of geometry and preionization conditions on the performance of atmospheric pressure HF chemical laser

Yehoshua Y. Kalisky, Karol Waichman, S. Kamin, D. Chuchem

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Laser performance of an electric discharge, plasma cathode preionized, atmospheric pressure HF chemical laser was investigated and 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 × 10⁶ - 2 × 10⁷ cm^-3, which is higher than the minimum critical density required for a self-sustained, homogeneous discharge of atmospheric-pressure electro-negative gasses. 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 will be reported.

Original language	English
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Publisher	Society of Photo-Optical Instrumentation Engineers
Pages	168-178
Number of pages	11
Volume	2702
ISBN (Print)	081942076X, 9780819420763
DOIs	https://doi.org/10.1117/12.236869
State	Published - 1 Jan 1996
Externally published	Yes
Event	Gas and Chemical Lasers - San Jose, CA, USA Duration: 31 Jan 1996 → 1 Feb 1996

Conference

Conference	Gas and Chemical Lasers
City	San Jose, CA, USA
Period	31/01/96 → 1/02/96

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.236869

Cite this

@inproceedings{1c99ab13393c4e0e8a0ea56ff94107ed,

title = "Effect of geometry and preionization conditions on the performance of atmospheric pressure HF chemical laser",

abstract = "Laser performance of an electric discharge, plasma cathode preionized, atmospheric pressure HF chemical laser was investigated and 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 × 106 - 2 × 107 cm-3, which is higher than the minimum critical density required for a self-sustained, homogeneous discharge of atmospheric-pressure electro-negative gasses. 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 will be reported.",

author = "Kalisky, \{Yehoshua Y.\} and Karol Waichman and S. Kamin and D. Chuchem",

year = "1996",

month = jan,

day = "1",

doi = "10.1117/12.236869",

language = "English",

isbn = "081942076X",

volume = "2702",

pages = "168--178",

booktitle = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "Society of Photo-Optical Instrumentation Engineers",

note = "Gas and Chemical Lasers ; Conference date: 31-01-1996 Through 01-02-1996",

}

Kalisky, YY, Waichman, K, Kamin, S & Chuchem, D 1996, Effect of geometry and preionization conditions on the performance of atmospheric pressure HF chemical laser. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 2702, Society of Photo-Optical Instrumentation Engineers, pp. 168-178, Gas and Chemical Lasers, San Jose, CA, USA, 31/01/96. https://doi.org/10.1117/12.236869

Effect of geometry and preionization conditions on the performance of atmospheric pressure HF chemical laser. / Kalisky, Yehoshua Y.; Waichman, Karol; Kamin, S. et al.
Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2702 Society of Photo-Optical Instrumentation Engineers, 1996. p. 168-178.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effect of geometry and preionization conditions on the performance of atmospheric pressure HF chemical laser

AU - Kalisky, Yehoshua Y.

AU - Waichman, Karol

AU - Kamin, S.

AU - Chuchem, D.

PY - 1996/1/1

Y1 - 1996/1/1

N2 - Laser performance of an electric discharge, plasma cathode preionized, atmospheric pressure HF chemical laser was investigated and 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 × 106 - 2 × 107 cm-3, which is higher than the minimum critical density required for a self-sustained, homogeneous discharge of atmospheric-pressure electro-negative gasses. 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 will be reported.

AB - Laser performance of an electric discharge, plasma cathode preionized, atmospheric pressure HF chemical laser was investigated and 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 × 106 - 2 × 107 cm-3, which is higher than the minimum critical density required for a self-sustained, homogeneous discharge of atmospheric-pressure electro-negative gasses. 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 will be reported.

UR - https://www.scopus.com/pages/publications/0029701397

U2 - 10.1117/12.236869

DO - 10.1117/12.236869

M3 - Conference contribution

AN - SCOPUS:0029701397

SN - 081942076X

SN - 9780819420763

VL - 2702

SP - 168

EP - 178

BT - Proceedings of SPIE - The International Society for Optical Engineering

PB - Society of Photo-Optical Instrumentation Engineers

T2 - Gas and Chemical Lasers

Y2 - 31 January 1996 through 1 February 1996

ER -

Effect of geometry and preionization conditions on the performance of atmospheric pressure HF chemical laser

Abstract

Conference

ASJC Scopus subject areas

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