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Title: High-power, long-pulse CO/sub 2/ laser transversely excited by a damped oscillating discharge through dielectric electrodes

Abstract

Applying a damped oscillating discharge to a dielectric-electrode TE (transversely excited) CO/sub 2/ laser, we obtain a high-power and long-pulse CO/sub 2/ laser output. With a decreasing value of the inductance inserted in parallel with the discharge load so as to make the discharge condition damped oscillating, laser output energy increased remarkably. When the inductance was 500 nH, a uniform glow discharge was obtained up to gas pressures of 500--600 Torr without any preionization. At a total pressure of 700 Torr (CO/sub 2//N/sub 2//He = 1/2/8), a maximum CO/sub 2/ laser output energy of 270 mJ/pulse (7.3 J/l atm) was obtained with an electrical efficiency of 4.3% and with a pulse duration of 7 ..mu..s.

Authors:
; ; ;
Publication Date:
Research Org.:
Department of Electrical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama-shi 223, Japan
OSTI Identifier:
5927000
Resource Type:
Journal Article
Journal Name:
Rev. Sci. Instrum.; (United States)
Additional Journal Information:
Journal Volume: 54:6
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; CARBON DIOXIDE LASERS; EXCITATION; PULSES; DAMPING; DIELECTRIC MATERIALS; EFFICIENCY; ELECTRIC DISCHARGES; ELECTRODES; EXPERIMENTAL DATA; GLOW DISCHARGES; HELIUM; LOW PRESSURE; NITROGEN; ORIENTATION; OSCILLATIONS; QUANTITY RATIO; DATA; ELEMENTS; ENERGY-LEVEL TRANSITIONS; FLUIDS; GAS LASERS; GASES; INFORMATION; LASERS; MATERIALS; NONMETALS; NUMERICAL DATA; RARE GASES; 420300* - Engineering- Lasers- (-1989)

Citation Formats

Hokazono, H, Midorikawa, K, Obara, M, and Fujioka, T. High-power, long-pulse CO/sub 2/ laser transversely excited by a damped oscillating discharge through dielectric electrodes. United States: N. p., 1983. Web. doi:10.1063/1.1137461.
Hokazono, H, Midorikawa, K, Obara, M, & Fujioka, T. High-power, long-pulse CO/sub 2/ laser transversely excited by a damped oscillating discharge through dielectric electrodes. United States. https://doi.org/10.1063/1.1137461
Hokazono, H, Midorikawa, K, Obara, M, and Fujioka, T. 1983. "High-power, long-pulse CO/sub 2/ laser transversely excited by a damped oscillating discharge through dielectric electrodes". United States. https://doi.org/10.1063/1.1137461.
@article{osti_5927000,
title = {High-power, long-pulse CO/sub 2/ laser transversely excited by a damped oscillating discharge through dielectric electrodes},
author = {Hokazono, H and Midorikawa, K and Obara, M and Fujioka, T},
abstractNote = {Applying a damped oscillating discharge to a dielectric-electrode TE (transversely excited) CO/sub 2/ laser, we obtain a high-power and long-pulse CO/sub 2/ laser output. With a decreasing value of the inductance inserted in parallel with the discharge load so as to make the discharge condition damped oscillating, laser output energy increased remarkably. When the inductance was 500 nH, a uniform glow discharge was obtained up to gas pressures of 500--600 Torr without any preionization. At a total pressure of 700 Torr (CO/sub 2//N/sub 2//He = 1/2/8), a maximum CO/sub 2/ laser output energy of 270 mJ/pulse (7.3 J/l atm) was obtained with an electrical efficiency of 4.3% and with a pulse duration of 7 ..mu..s.},
doi = {10.1063/1.1137461},
url = {https://www.osti.gov/biblio/5927000}, journal = {Rev. Sci. Instrum.; (United States)},
number = ,
volume = 54:6,
place = {United States},
year = {Wed Jun 01 00:00:00 EDT 1983},
month = {Wed Jun 01 00:00:00 EDT 1983}
}