title: Optical properties and residual stress of YbF3 thin films deposited at different temperatures.
abstract: The influence of deposition temperature on the optical properties, microstructure, and residual stress of YbF(3) films, deposited by electron-beam evaporation, has been investigated. The increased refractive indices and surface roughness of YbF(3) films indicate that the film density and columnar structure size increase with deposition temperature. At the same time, higher packing density reduces absorption of moisture. The residual stress is related to deposition temperature and to substrate. For the samples deposited on BK7, the residual stress mainly comes from intrinsic stress, however, for those on fused silica, thermal stress is the dominant factor of total residual stress.
authors.affiliation: State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.forename: Yue-guang
authors.initials: YG
authors.lastname: Zhang
authors.forename: Wei-lan
authors.initials: WL
authors.lastname: Chen
authors.forename: Wei-dong
authors.initials: WD
authors.lastname: Shen
authors.forename: Xu
authors.initials: X
authors.lastname: Liu
authors.forename: Pei-fu
authors.initials: PF
authors.lastname: Gu