title: Second-harmonic generation from a KBe(2) BO(3)F(2) crystal in the deep ultraviolet.
abstract: By use of KBe(2)BO(3)F(2) (KBBF) crystal with a size of 10 mmx10 mm x1.2 mm and a special prism-coupling technique (PCT), fourth-harmonic generation of Ti:sapphire laser systems from 200 to 179.4 nm has been achieved. Moreover, with a Ti:sapphire laser with a 50-fs pulse duration and a 1-kHz repetition rate, conversion efficiency as high as 13% from 400 to 200 nm without any surface-loss correction has also been obtained. The data show that with the PCT a KBBF crystal can produce deep-UV coherent light with measurable power output.
authors.forename: Chuangtian
authors.initials: C
authors.lastname: Chen
authors.forename: Junhua
authors.initials: J
authors.lastname: Lu
authors.forename: T
authors.initials: T
authors.lastname: Togashi
authors.forename: T
authors.initials: T
authors.lastname: Suganuma
authors.forename: T
authors.initials: T
authors.lastname: Sekikawa
authors.forename: S
authors.initials: S
authors.lastname: Watanabe
authors.forename: Zuyan
authors.initials: Z
authors.lastname: Xu
authors.forename: Jiyang
authors.initials: J
authors.lastname: Wang