title: High-average-power light source below 200 nm from a KBe(2)BO(3)F(2) prism-coupled device.
abstract: Using a 2.3 mm thick KBe(2)BO(3)F(2) crystal optically contacted with CaF(2) in a prism-coupled device, we have obtained an average output power of as much as 360 mW at 200 nm. Long-term stability was verified above a 150 mW level at 200 nm. An output power of 50 mW was also obtained with a narrow spectral width of 0.007 pm at 193.5 nm.
authors.affiliation: Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China. cct@cl.cryo.ac.cn
authors.forename: C T
authors.initials: CT
authors.lastname: Chen
authors.forename: T
authors.initials: T
authors.lastname: Kanai
authors.forename: X Y
authors.initials: XY
authors.lastname: Wang
authors.forename: Y
authors.initials: Y
authors.lastname: Zhu
authors.forename: S
authors.initials: S
authors.lastname: Watanabe