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Proceedings Paper

Copper density measurement of a large-bore CVL
Author(s): Kazuo Hayashi; Etsuo Noda; Yasushi Iseki; Ikuo Watanabe; Setsuo Suzuki; Osami Morimiya
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Paper Abstract

The ground state and the lower laser level copper densities were measured in a large-bore copper vapor laser (CVL). The beam diameter was 80 mm, the discharge length 1500 mm, and the output power about 100 W at an operation of a repetition frequency 5 kHz. A new laser-absorption method has been developed to measure the copper ground state density. The measured copper density of the ground state was 1 to approximately 5 X 1021 m-3 and the radial profile was hollow. The profile can be explained from the radial gas temperature profile. The lower laser level (metastable state) densities were measured by the ordinary laser-absorption method. The density of the lower laser level for green emission was about 1 X 1018 m-3 and that for yellow emission was about 3 X 1017 m-3 at the center. The lower laser level densities were higher at the center than near the wall in contrast with the ground state density.

Paper Details

Date Published: 1 May 1992
PDF: 8 pages
Proc. SPIE 1628, Intense Laser Beams, (1 May 1992); doi: 10.1117/12.58972
Show Author Affiliations
Kazuo Hayashi, Toshiba Corp. (Japan)
Etsuo Noda, Toshiba Corp. (Japan)
Yasushi Iseki, Toshiba Corp. (Japan)
Ikuo Watanabe, Toshiba Corp. (Japan)
Setsuo Suzuki, Toshiba Corp. (Japan)
Osami Morimiya, Toshiba Corp. (Japan)

Published in SPIE Proceedings Vol. 1628:
Intense Laser Beams
Richard C. Wade; Peter B. Ulrich, Editor(s)

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