title: Reflection filter with high reflectivity and narrow bandwidth.
abstract: A kind of reflection filter with a narrow bandwidth and high reflectivity is designed as being composed of an all-dielectric Fabry-Perot filter, a high-reflectivity Ag film, and especially an ultrathin metallic film, n approximately = k. Exemplary structures and some formulas concerning spectral-reflection performances, such as general reflectivity, maximum reflectivity, and the halfwidth of the reflection band, are given. Experiments show the validity of this design.
authors.affiliation: Department of Optical Engineering, Beijing Institute of Technology, Beijing 100081, China.
authors.forename: M
authors.initials: M
authors.lastname: Tan
authors.forename: Y
authors.initials: Y
authors.lastname: Lin
authors.forename: D
authors.initials: D
authors.lastname: Zhao