Gas laser with dual plasma mixing
Abstract
A gas laser includes an enclosure forming a first chamber, a second chamber and a lasing chamber which communicates through a first opening to the first chamber and through a second opening to the second chamber. The lasing chamber has a pair of reflectors defining a Fabry-Perot cavity. Separate inlets enable different gases to be introduced into the first and second chambers. A first cathode within the first chamber is provided to produce positive ions which travel into the lasing chamber and a second cathode of a pin-hollow type within the second chamber is provided to produce negative ions which travel into the lasing chamber. A third inlet introduces a molecular gas into the lasing chamber, where the molecular gas becomes excited by the positive and negative ions and emits light which lases in the Fabry-Perot cavity.
- Inventors:
-
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 872249
- Patent Number(s):
- 5892788
- Assignee:
- Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
- DOE Contract Number:
- AC05-96OR22464
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- gas; laser; dual; plasma; mixing; enclosure; forming; chamber; lasing; communicates; pair; reflectors; defining; fabry-perot; cavity; separate; inlets; enable; gases; introduced; chambers; cathode; provided; produce; positive; travel; pin-hollow; type; negative; third; inlet; introduces; molecular; excited; emits; light; lases; emits light; molecular gas; gas laser; fabry-perot cavity; separate inlet; plasma mixing; dual plasma; /372/
Citation Formats
Pinnaduwage, Lal A. Gas laser with dual plasma mixing. United States: N. p., 1999.
Web.
Pinnaduwage, Lal A. Gas laser with dual plasma mixing. United States.
Pinnaduwage, Lal A. Fri .
"Gas laser with dual plasma mixing". United States. https://www.osti.gov/servlets/purl/872249.
@article{osti_872249,
title = {Gas laser with dual plasma mixing},
author = {Pinnaduwage, Lal A},
abstractNote = {A gas laser includes an enclosure forming a first chamber, a second chamber and a lasing chamber which communicates through a first opening to the first chamber and through a second opening to the second chamber. The lasing chamber has a pair of reflectors defining a Fabry-Perot cavity. Separate inlets enable different gases to be introduced into the first and second chambers. A first cathode within the first chamber is provided to produce positive ions which travel into the lasing chamber and a second cathode of a pin-hollow type within the second chamber is provided to produce negative ions which travel into the lasing chamber. A third inlet introduces a molecular gas into the lasing chamber, where the molecular gas becomes excited by the positive and negative ions and emits light which lases in the Fabry-Perot cavity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1999},
month = {Fri Jan 01 00:00:00 EST 1999}
}
Works referenced in this record:
Comment on ‘‘Effect of electron temperature on negative hydrogen ion production in a low‐pressure Ar discharge plasma with methane’’ [Appl. Phys. Lett. 63 , 1619 (1993)]
journal, August 1995
- Pinnaduwage, Lal A.
- Applied Physics Letters, Vol. 67, Issue 7
Lasing in Al following photoionization and neutralization in the presence of : The role of
journal, April 1994
- Kielkopf, John F.; Pinnaduwage, Lal A.; Christophorou, Loucas G.
- Physical Review A, Vol. 49, Issue 4
Effect of electron temperature on negative hydrogen ion production in a low‐pressure Ar discharge plasma with methane
journal, September 1993
- Iizuka, S.; Koizumi, T.; Takada, T.
- Applied Physics Letters, Vol. 63, Issue 12