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Proceedings Paper

Theoretical analysis of the modal behavior of 2D random photonic crystals
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Paper Abstract

We present the effect of structural randomness on the formation of Anderson localization (AL) in random photonic crystals (RPCs) by using a two-dimensional FDTD (Finite-Difference Time-Domain) computational method. The RPC consists of a silicon substrate with an array of air holes aligned in a triangular lattice shape. The structural randomness is introduced by randomly dislocating the positions of air holes. By investigating impulse response of the system, we obtained frequency spectra and Q-factors of long-lived modes. The modal characteristics of the modes as a function of structural randomness in RPCs and optimization of the structural randomness to achieve high photon confinement efficiency are achieved.

Paper Details

Date Published: 22 February 2012
PDF: 11 pages
Proc. SPIE 8269, Photonic and Phononic Properties of Engineered Nanostructures II, 826924 (22 February 2012); doi: 10.1117/12.906960
Show Author Affiliations
Shimpei Hamada, Keio Univ. (Japan)
Seiji Takeda, Keio Univ. (Japan)
Pierre Viktorovitch, Institute des Nanotechnologies de Lyon, CNRS (France)
Minoru Obara, Keio Univ. (Japan)

Published in SPIE Proceedings Vol. 8269:
Photonic and Phononic Properties of Engineered Nanostructures II
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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