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Waveguiding through a two‐dimensional metallic photonic crystal
Author(s) -
Baida F. I.,
Van Labeke D.,
Pagani Y.,
Guizal B.,
Al Naboulsi M.
Publication year - 2004
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.2004.01273.x
Subject(s) - bent molecular geometry , photonic crystal , optics , wavelength , materials science , finite difference time domain method , scattering , lattice (music) , photonics , physics , condensed matter physics , acoustics , composite material
Summary We present a two‐dimensional (2D) finite‐difference time domain simulation of the propagation of light through linear and bent channels in metallic photonic crystals. We took as a starting point the Bozhevolnyi experiment, consisting of the scattering of surface plasmons by a 2D structure of finitely sized periodic gold dots arranged in a triangular lattice of 400‐nm period. We model injection and propagation of light through linear channels of different widths. We also study the behaviour of light in the presence of a 90° bent line defect made in the structure. We show that the confinement depends on the orientation of the input and output line defects. The two cases of ΓM and ΓK orientations are considered and a spectral study for five different wavelengths is carried out.