Abstract

A derivative of the linear tricyclic compound, acridine, is shown to be useful as a saturable absorber for short-pulse KrF lasers. The saturation characteristics and absorption recovery of a methanol solution of acridine for a 20-psec KrF laser pulse are reported. We obtain a saturation fluence of 1.2 mJ/cm² and a ratio of the primary to the excited absorption cross section of 6.25:1.

© 1989 Optical Society of America

Multiterawatt subpicosecond KrF laser

A. Endoh, M. Watanabe, N. Sarukura, and S. Watanabe
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Ultrahigh-intensity KrF* laser system

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