Generation of quasi-continuous-wave vacuum-ultraviolet coherent light by fourth-harmonic of a Ti:sapphire laser with KBBF crystal.
We report the generation of quasi-continuous-wave vacuum-ultraviolet (VUV) coherent light based on a Ti:sapphire laser with two successive frequency doubling stages. In the first stage, UV light at 399 nm with power of 1.1 W was obtained by exploiting an enhanced cavity. With a KBBF crystal as nonlinear material, quasi-continuous-wave VUV coherent light with power of about 25 mW at 199.5 nm and 4.7 mW at 193.5 nm were achieved through a single-pass SHG configuration, respectively, in the second stage.
Department of Electronic Engineering, The University of Electro-Communications, Tokyo, Japan. zhang@ee.uec.ac.jp
Yun
Y
Zhang
Yusuke
Y
Sato
Nobuyoshi
N
Watanabe
Riskey
R
Ananda
Yoshiko
Y
Okada-Shudo
Masayoshi
M
Watanabe
Masaharu
M
Hyodo
Xiaoyang
X
Wang
Chuangtian
C
Chen
Teruto
T
Kanai
Shuntaro
S
Watanabe