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Proceedings Paper

Subpicosecond pulse generation of KrF amplifier using acridine saturable absorber
Author(s): Ken-ichi Ueda; Hajime Nishioka; Hideaki Kuranishi; Hiroshi Takuma
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Paper Abstract

A derivative of the linear tri-cyclic aromatic dye, acridine, was applied to the saturable absorber for KrF lasers. Acridine in ethanol showed the best bleaching properties such as the high cross section ratio Γ =7.1 and the low saturation fluence of 1.1 mJ/cm2 due to the large absorption cross section of 5.6 x 1016 cm2 at 248 nm. Absorption recovery had two time constants of 0.4 ns and 115 ns. Effective filtering of ASE made it possible to control the prepulse during the ultra short pulse amplification. Picosecond pulses with sharp front edge were compressed 10 ps to 420 fs in the saturated gain KrF amplifier. Sub-picosecond pulses with high contrast ratio to ASE were generated in the high gain operation of KrF lasers.

Paper Details

Date Published: 1 June 1990
PDF: 12 pages
Proc. SPIE 1225, High-Power Gas Lasers, (1 June 1990); doi: 10.1117/12.18476
Show Author Affiliations
Ken-ichi Ueda, Univ. of Electro-Communications (Japan)
Hajime Nishioka, Univ. of Electro-Communications (Japan)
Hideaki Kuranishi, Univ. of Electro-Communications (Japan)
Hiroshi Takuma, Univ. of Electro-Communications (Japan)

Published in SPIE Proceedings Vol. 1225:
High-Power Gas Lasers
Petras V. Avizonis; Charles Freed; Jin J. Kim; Frank K. Tittel, Editor(s)

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