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Laser emission from the 13. 9-. mu. m 10/sup 0/0. -->. 01/sup 1/0 CO/sub 2/ transition in pulsed electrical discharges

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.89598· OSTI ID:7215554

Laser emission on the Q and P branches of the 10/sup 0/0..-->..01/sup 1/0 transition of CO/sub 2/ has been observed in a system using a cryogenically cooled pulsed electrical discharge as the excitation source. This is the first reported evidence that an inversion on this transition can be produced by direct electrical excitation of a gas mixture containing CO/sub 2/. The inversion is created by using a delayed 10.6-..mu..m laser pulse to saturate the 10/sup 0/0 state. Parameter ranges for the system operating in an optimal CO/sub 2/ : N/sub 2/ : He=1 : 2 : 25 gas mixture are as follows: pressure, 5--18 Torr; temperature, 140--220 degreeK; time delay of 10.6-..mu..m laser pulse, 0.1--4 msec; and output energy, 15--20 ..mu..J/pulse.

Research Organization:
Westinghouse Research Laboratories, Pittsburgh, Pennsylvania 15235
OSTI ID:
7215554
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 31:2; ISSN APPLA
Country of Publication:
United States
Language:
English