Abstract

We report the measurement, in a pulsed hollow-cathode discharge, of metastable quartet atoms of Li and Na. By using a tunable probe laser, population densities of 3 × 10¹⁰ atoms cm⁻³ and 10¹¹ atoms cm⁻³ were measured in the Li(1s2s2p)⁴P° and Na(2p⁵3s3p)⁴D_7/2 levels, respectively. These levels are candidates for energy storage for extreme-ultraviolet lasers.

© 1984 Optical Society of America

Quasi-metastable quartet levels in alkalilike atoms and ions

S. E. Harris, D. J. Walker, R. G. Caro, A. J. Mendelsohn, and R. D. Cowan
Opt. Lett. 9(5) 168-170 (1984)

Line shapes of atomic hydrogen in hollow-cathode discharges

William Benesch and Elizabeth Li
Opt. Lett. 9(8) 338-340 (1984)

Pulsed hollow-cathode discharge for extreme-ultraviolet lasers and radiation sources

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Opt. Lett. 7(2) 74-76 (1982)

Uranium ionization in a pulsed krypton-sustained hollow-cathode discharge

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Appl. Opt. 23(24) 4532-4538 (1984)

Laser cooling of a direct-current atomic discharge

E. Arimondo, M. G. Di Vito, K. Ernst, and M. Inguscio
Opt. Lett. 9(12) 530-532 (1984)