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Proceedings Paper

FDTD sources for localized state excitation in photonic crystals and photonic quasi-crystals
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Paper Abstract

Numerical methods, such as the finite difference time domain (FDTD) technique, are commonly used to study transmission properties, waveguide modes, and localized states of photonic crystals and photonic quasi-crystals. The degree to which a localized state is excited is dependent on the source's topology. Researchers have proposed a number of different source configurations in order to efficiently excite localized states; dipole sources, random sources, and initial field distributions. The efficient excitation of different localized states in a photonic crystal and quasi-crystal through a general source configuration remains an issue to be addressed. This work re-examines the techniques currently used and determines the most efficient method to excite the modes of a photonic crystal and quasi-crystal without prior knowledge of the localized state profiles.

Paper Details

Date Published: 16 February 2009
PDF: 10 pages
Proc. SPIE 7223, Photonic and Phononic Crystal Materials and Devices IX, 72230R (16 February 2009); doi: 10.1117/12.809209
Show Author Affiliations
Scott R. Newman, Carleton Univ. (Canada)
Robert C. Gauthier, Carleton Univ. (Canada)

Published in SPIE Proceedings Vol. 7223:
Photonic and Phononic Crystal Materials and Devices IX
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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