title: High resistance against ultraviolet photorefraction in zirconium-doped lithium niobate crystals.
abstract: The UV photorefraction of Zr-doped lithium niobate (LN:Zr) was investigated. The experimental results show that LN:Zr crystals have high resistance against photorefraction in the UV region as well as in the visible range and can withstand a UV light intensity of above 10(5) W/cm(2). According to the fitting results of erasing curves with UV and green light, a two-center O(2-/-)-defect model was suggested. Our results indicate that LN:Zr is an excellent candidate for optical damage resistance from the UV to the visible spectrum.
authors.affiliation: School of Physics, Nankai University, Tianjin 300071, China.
authors.forename: Fucai
authors.initials: F
authors.lastname: Liu
authors.forename: Yongfa
authors.initials: Y
authors.lastname: Kong
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Hongde
authors.initials: H
authors.lastname: Liu
authors.forename: Shiguo
authors.initials: S
authors.lastname: Liu
authors.forename: Shaolin
authors.initials: S
authors.lastname: Chen
authors.forename: Xinzheng
authors.initials: X
authors.lastname: Zhang
authors.forename: Romano
authors.initials: R
authors.lastname: Rupp
authors.forename: Jingjun
authors.initials: J
authors.lastname: Xu