Low-loss resonant modes in deterministically aperiodic nanopillar waveguides

Abstract

Quasiperiodic Fibonacci-like and fractal Cantor-like single- and multiple-row nanopillar waveguides are investigated theoretically by employing the finite-difference time-domain method. It is shown that resonant modes of the Fibonacci and Cantor waveguides can have a Q factor comparable with that of a point-defect resonator embedded in a periodic nanopillar waveguide, while the radiation is preferably emitted into the waveguide direction, thus improving coupling to an unstructured dielectric waveguide located along the structure axis. This is especially so when the dielectric waveguide introduces a small perturbation in the aperiodic structure, breaking the structure symmetry while staying well apart from the main localization area of the resonant mode. The high-Q factor and increased coupling with the external dielectric waveguide suggest using the proposed deterministically aperiodic nanopillar waveguides in photonic integrated circuits.

© 2006 Optical Society of America

Quasi-periodic distribution of plasmon modes in two-dimensional Fibonacci arrays of metal nanoparticles

Ramona Dallapiccola, Ashwin Gopinath, Francesco Stellacci, and Luca Dal Negro
Opt. Express 16(8) 5544-5555 (2008)

Design of all-optical switching component based on pillar-array hybrid nonlinear photonic crystal cavity

Fei Qin, Zi-Ming Meng, and Zhi-Yuan Li
J. Opt. Soc. Am. B 29(9) 2314-2319 (2012)

Light amplification from Cantor and asymmetric multilayer resonators

Takashi Okamoto and Akira Fukuyama
Opt. Express 13(20) 8122-8127 (2005)

The effects of periodic and quasi-periodic orders on the photonic bandgap structures of microring coupled-resonator optical waveguides

Thomas Y. L Ang and Mee Koy Chin
Opt. Express 17(7) 5176-5192 (2009)

Thirty-two-channel dense-wavelength-division multiplexer based on cascade two-dimensional photonic crystal waveguide structure

Yaw-Dong Wu, Ke-Wei Hsu, and Tien-Tsorng Shih
J. Opt. Soc. Am. B 24(9) 2075-2080 (2007)