title: High-efficiency 266-nm output of a KBe2BO3F2 crystal.
abstract: Fourth-harmonic generation of a Nd:YAG laser has been achieved with a conversion efficiency of 30.6% in a KBeBO3F2 crystal of thickness 1.8 mm. The acceptance angle at wavelength 532 nm has also been measured.
authors.affiliation: Beijing Center for Crystal Research and Development, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China. wglamanda@hotmail.com
authors.forename: Guiling
authors.initials: G
authors.lastname: Wang
authors.forename: Chengqian
authors.initials: C
authors.lastname: Zhang
authors.forename: Chuangtian
authors.initials: C
authors.lastname: Chen
authors.forename: Aiyun
authors.initials: A
authors.lastname: Yao
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.forename: Zuyan
authors.initials: Z
authors.lastname: Xu
authors.forename: Jiyang
authors.initials: J
authors.lastname: Wang