Open AccessCavity-resonator-integrated guided-mode resonance filter for aperture miniaturization
Author(s) -
Kenji Kintaka,
Tatsuya Majima,
Jun–ichi Inoue,
Koji Hatanaka,
Junji Nishii,
Shogo Ura
Publication year - 2012
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.001444
Subject(s) - miniaturization , optics , resonator , materials science , guided mode resonance , aperture (computer memory) , wavelength , resonance (particle physics) , finite difference time domain method , waveguide filter , bandwidth (computing) , filter (signal processing) , optoelectronics , prototype filter , physics , telecommunications , diffraction grating , low pass filter , acoustics , particle physics , computer science , computer vision , nanotechnology
A guided-mode resonance filter integrated in a waveguide cavity resonator constructed by two distributed Bragg reflectors is designed and fabricated for miniaturization of aperture size. Reflection efficiency of >90% and wavelength selectivity of 0.4 nm are predicted in the designed SiO(2)-based filter with 50-μm aperture by a numerical calculation using the finite-difference time-domain method. A maximum reflectance of 67% with 0.5-nm bandwidth is experimentally demonstrated by the fabricated device at around 850-nm wavelength.