Open AccessUltrahigh-Q small-V photonic crystal nanobeam cavities based on parabolic-shaped width and taper holes
Author(s) -
Feng Chen,
Guoying Feng,
Nianjiang Chen,
Shouhuan Zhou
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.134209
Subject(s) - photonic crystal , optomechanics , optics , q factor , fabrication , physics , finite difference time domain method , materials science , nanophotonics , optoelectronics , resonator , medicine , alternative medicine , pathology
One-dimensional (1-D) photonic crystal (PhC) nanobeam cavity based on parabolic-shaped width and tapered holes was proposed and analyzed. Finite-difference time-domain simulations show that both an ultrasmall modal volume (V 0.04(λ /n)3) and ultrahigh quality factor (Q 1.8× 107) can be obtained in PT PhC nanobeam cavity. In addition, the PT PhC nanobeam have one order lower V comparing to parabolic and tapered nanobeam. With compactness, lower fabrication requirements to achieve ultrahigh Q/V, the proposed nanobeam could be versatile platforms of interest for optical communications, optomechanics, cavity QED, etc.