title: Cavity-resonator-integrated guided-mode resonance band-stop reflector.
abstract: A cavity-resonator-integrated guided-mode resonance filter (CRIGF) consists of a grating coupler inside a pair of distributed Bragg reflectors. A combination of a CRIGF with a high-reflection substrate can provide a new type of a band-stop reflector with a small aperture for a vertically incident wave from air. A narrow stopband was theoretically predicted and experimentally demonstrated. It was quantitatively shown that reflection spectra depended on optical-buffer-layer thickness. The reflector of 10-μm aperture was fabricated and characterized. The extinction ratio in reflectance was measured to be lower than -20 dB at a resonance wavelength. The bandwidth at -3 dB was 0.15 nm.
authors.forename: Shogo
authors.initials: S
authors.lastname: Ura
authors.forename: Masahiro
authors.initials: M
authors.lastname: Nakata
authors.forename: Kenichi
authors.initials: K
authors.lastname: Yanagida
authors.forename: Junichi
authors.initials: J
authors.lastname: Inoue
authors.forename: Kenji
authors.initials: K
authors.lastname: Kintaka