title: Planar omnidirectional reflectors in chalcogenide glass and polymer.
abstract: We have fabricated and tested planar reflectors exhibiting an omnidirectional stop band centered near 1750 nm wavelength. The reflectors are comprised of multiple layers of Ge33As12Se55 chalcogenide glass and polyamide-imide polymer. Glass layers were deposited by thermal evaporation and polymer layers were deposited by spin-casting. Thin film stacks of up to 13 layers showed good planarity and adhesion, which we attribute to the well-matched thermo-mechanical properties of the materials. The optical properties of the reflectors were tested in both transmission and reflection, and the results are in good agreement with theoretical predictions. Relatively low-temperature processing steps were employed, making these reflectors of interest for integrated optics.
authors.forename: R
authors.initials: R
authors.lastname: Decorby
authors.forename: H
authors.initials: H
authors.lastname: Nguyen
authors.forename: P
authors.initials: P
authors.lastname: Dwivedi
authors.forename: T
authors.initials: T
authors.lastname: Clement