title: Effective-substrate theory for optical reflection from a layered substrate.
abstract: We show that reflection of a monochromatic light from a semi-infinite medium covered with a stack of layered media is equivalent to that from an effective "semi-infinite medium" characterized by two distinctive optical dielectric constants for the s-polarized and p-polarized components, respectively. Such an effective-substrate approach simplifies the analysis of ellipsometry measurements of a wide range of surface-bound processes including thin film growth and surface-bound reactions.
authors.affiliation: Department of Physics, University of California at Davis, Davis, CA 95616, USA.
authors.forename: J P
authors.initials: JP
authors.lastname: Landry
authors.forename: X
authors.initials: X
authors.lastname: Wang
authors.forename: Y Y
authors.initials: YY
authors.lastname: Fei
authors.forename: X D
authors.initials: XD
authors.lastname: Zhu