title: Stroboscopic Surface Thermal Lensing for Fast Detection of Thermal Defects in Large-Scaled Coating Films.
abstract: A stroboscopic surface thermal lensing (SSTL) system for the fast detection of thermal-induced defects in large-scaled optical coating films was constructed. The SSTL signal was generated by a set of double-modulators and captured by a high speed matrix camera, respectively. The spot size of both pump laser and probe laser expanded for larger detection area was finished in a single step. Based on the STL technique, both the mapping of amplitude and the phase of SSTL signal on the whole area of the coatings can be achieved simultaneously.
authors.affiliation: Shanghai Key Laboratory of Modern Optical System, Optical Instruments and Systems Engineering Research Center, Ministry of Education, University of Shanghai for Science and Technology, Shanghai 200093, China.
authors.forename: Chunxian
authors.initials: C
authors.lastname: Tao
authors.affiliation: Shanghai Key Laboratory of Modern Optical System, Optical Instruments and Systems Engineering Research Center, Ministry of Education, University of Shanghai for Science and Technology, Shanghai 200093, China.
authors.forename: Dawei
authors.initials: D
authors.lastname: Zhang
authors.affiliation: Shanghai Key Laboratory of Modern Optical System, Optical Instruments and Systems Engineering Research Center, Ministry of Education, University of Shanghai for Science and Technology, Shanghai 200093, China.
authors.forename: Ruijin
authors.initials: R
authors.lastname: Hong
authors.affiliation: Shanghai Key Laboratory of Modern Optical System, Optical Instruments and Systems Engineering Research Center, Ministry of Education, University of Shanghai for Science and Technology, Shanghai 200093, China.
authors.forename: Zhongfei
authors.identifier: 0000-0002-1586-0180
authors.initials: Z
authors.lastname: Wang