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
Original Manuscript: November 16, 1988
Manuscript Accepted: April 6, 1989
Published: July 1, 1989
H. Nishioka, H. Kuranishi, K. Ueda, and H. Takuma, "UV saturable absorber for short-pulse KrF laser systems," Opt. Lett. 14, 692-694 (1989)