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16 February 2009 FDTD sources for localized state excitation in photonic crystals and photonic quasi-crystals
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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.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Scott R. Newman and Robert C. Gauthier "FDTD sources for localized state excitation in photonic crystals and photonic quasi-crystals", Proc. SPIE 7223, Photonic and Phononic Crystal Materials and Devices IX, 72230R (16 February 2009);


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