Demonstration of an iodine laser pumped by an air–helium electric discharge

Herein the authors report on the demonstration of gain and a continuous-wave laser on the 1315 nm transition of atomic iodine using the energy transferred to I(2P1/2) from O2(a 1Delta) produced by both radio-frequency and microwave electric discharges sustained in a dry air-He-NO gas mixture. Active...

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Published inJournal of physics. D, Applied physics Vol. 43; no. 2; pp. 025208 - 025208 (10)
Main Authors Woodard, B S, Zimmerman, J W, Benavides, G F, Carroll, D L, Verdeyen, J T, Palla, A D, Field, T H, Solomon, W C, Lee, S, Rawlins, W T, Davis, S J
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 20.01.2010
Institute of Physics
Subjects
Electric discharges
Exact sciences and technology
High-frequency discharges
Physics
Physics of gases, plasmas and electric discharges
Physics of plasmas and electric discharges
Supersonic flow
Oxygen
Output power
Gas flow
Electric discharges
Air
Gas injection
Nitrogen
Helium
Microwave discharge
Gas mixtures
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Summary:Herein the authors report on the demonstration of gain and a continuous-wave laser on the 1315 nm transition of atomic iodine using the energy transferred to I(2P1/2) from O2(a 1Delta) produced by both radio-frequency and microwave electric discharges sustained in a dry air-He-NO gas mixture. Active oxygen and nitrogen species were observed downstream of the discharge region. Downstream of the discharge, cold gas injection was employed to raise the gas density and lower the temperature of the continuous gas flow. Gain of 0.0062% cm-1 was obtained and the laser output power was 32 mW in a supersonic flow cavity.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/43/2/025208