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cw laser oscillation on transitions of Cu/sup +/ in He-Cu halide gas discharges

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.90483· OSTI ID:6744940
We report cw oscillation on five transitions of Cu/sup +/ in the near infrared in hollow-cathode He-CuI, He-CuBr, and He-CuCl gas discharges. Excitation of the upper laser levels is attributed to thermal-energy charge-transfer reactions between ground-state He ions and neutral Cu atoms following discharge dissociation of the Cu halide molecules to generate free copper in the volume. Operating temperatures are in the range 400--550 /sup 0/C and threshold currents for oscillation compare favorably with the lowest yet reported for sputtering Cu/sup +/ lasers.
Research Organization:
School of Mathematics and Physics, Macquarie University, North Ryde, New South Wales, 2113, Australia
OSTI ID:
6744940
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 33:7; ISSN APPLA
Country of Publication:
United States
Language:
English

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