Generation of ultrashort 25-μJ pulses at 200 nm by dual broadband frequency doubling with a thin KBe2BO3F2 crystal.
Ultrashort pulses with a 25-μJ output energy were generated at 200 nm by dual broadband frequency doubling with a thin KBe(2)BO(3)F(2) (KBBF) crystal at 1 kHz as the fourth harmonic of a high power Ti:sapphire laser. The spectrum was broadened to a spectral width of 2.25 nm. The pulse duration of 56 fs was measured by single-shot autocorrelation with two-photon fluorescence from self-trapped excitons in a CaF(2) crystal.
Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan. czhou@rs.noda.tus.ac.jp
Chun
C
Zhou
Teruto
T
Kanai
Xiaoyang
X
Wang
Yong
Y
Zhu
Chuangtian
C
Chen
Shuntaro
S
Watanabe
D000537:Aluminum Oxide / Q000737:chemistry*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014025:Titanium / Q000737:chemistry*
D014025:Titanium; D000537:Aluminum Oxide