High-Q microdisk resonator having sub-wavelength grating on its sidewall

Author

Iijima, S. ; Ohtera, Yasuo ; Yamada, Hiroyoshi

Author_Institution

Grad. Sch. of Eng., Tohoku Univ., Sendai, Japan

fYear

2013

fDate

June 30 2013-July 4 2013

Firstpage

1

Lastpage

2

Abstract

A novel type of dielectric microdisk resonator for integrated optics is proposed. The disk has angular grating on its sidewall, which exhibits guided-mode resonance (GMR) and thus functions as a highly reflective mirror for diverging waves inside the disk. Due to the wavelength sensitive property of GMR, a particular cavity mode can have large quality factor (Q) than other ones. Basic optical characteristics such as input/output characteristics, Q-factors, mode field patterns were investigated through Finite-Difference Time-Domain (FDTD) simulation.

Keywords

Q-factor; diffraction gratings; finite difference time-domain analysis; integrated optics; nanophotonics; optical resonators; FDTD; GMR; angular grating; cavity mode; dielectric microdisk resonator; finite difference time-domain simulation; guided-mode resonance; integrated optics; mode field patterns; quality factor; reflective mirror; sub-wavelength grating; Cavity resonators; Finite difference methods; Gratings; Laser beams; Optical resonators; Q-factor; Time-domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on

Conference_Location

Kyoto

Type

conf

DOI

10.1109/CLEOPR.2013.6600129

Filename

6600129