Ultraviolet laser action from Cu II in the 2500-Å region

Journal Article · Sun Feb 01 04:00:00 EST 1976 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.88698· OSTI ID:4094669

McNeil, J. R.; Collins, G. J.; Persson, K. B.; Franzen, D. L.

We have obtained cw laser action from Cu II at 2486, 2506, 2591, and 2599 Å by exciting a neon discharge in a copper hollow cathode. We have observed 7-mW cw output power just above threshold and the output appears to saturate at 210 mW under quasi-cw operation. The four ultraviolet laser lines observed originate from the 3d ⁹5s (³ D) term of Cu II. The quantum efficiency of the 2500-Å laser transitions approaches 25%. Finally, each of the four Cu II laser transitions has been employed in the past by spectroscopists as a secondary wavelength standard in the ultraviolet.

• Research Organization: Department of Electrical Engineering, Colorado State University, Fort Collins, Colorado 80523
• Sponsoring Organization: USDOE
• NSA Number: NSA-33-020088
• OSTI ID: 4094669
• Journal Information: Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 4 Vol. 28; ISSN APPLAB; ISSN 0003-6951
• Publisher: American Institute of Physics (AIP)
• Country of Publication: United States
• Language: English

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