title: Simple and efficient technique for evaluating the optical losses from surface scattering and volume attenuation in a thin film.
abstract: We present a simple and efficient technique for evaluating the optical losses of a planar film by use of a quasi-waveguide configuration and a prism film coupler configuration. The technique can separate two contributions to optical loss: that from the surface scattering caused by the roughness of surface and that from volume losses including volume scattering and volume absorption.
authors.forename: Xi-Jing
authors.initials: XJ
authors.lastname: Zhang
authors.forename: Xi-Zhi
authors.initials: XZ
authors.lastname: Fan
authors.forename: Hui-Tian
authors.initials: HT
authors.lastname: Wang
authors.forename: Jing-Liang
authors.initials: JL
authors.lastname: He
authors.forename: N
authors.initials: N
authors.lastname: Ming