Open AccessDesign of thin-film photonic crystals with complete photonic bandgap
Author(s) -
Se-Young Park,
Heungjoon Kim,
Biao Song
Publication year - 2018
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.029521
Subject(s) - photonic crystal , yablonovite , materials science , optics , photonic integrated circuit , optoelectronics , band gap , photonics , polarization (electrochemistry) , photonic bandgap , transverse plane , wavelength , photonic metamaterial , physics , chemistry , structural engineering , engineering
We theoretically investigate the optical characteristics of a thin-film photonic crystal structure with a complete photonic bandgap for both polarization of the transverse electric and transverse magnetic modes for any in-plane direction. The structure consists of three-layer stacked two-dimensional photonic crystal slabs, and the thickness of the structure is less than a few wavelengths. We show that a wide complete photonic bandgap can be obtained in the asymmetrically stacked photonic crystal structure. In addition, we designed a waveguide with a broad bandwidth of 100 nm and a nanocavity with a quality factor of 3.7 × 10 7 in the structures.