Investigation of localized coupled-cavity modes in two-dimensional photonic bandgap structures
IEEE Journal of Quantum Electronics
837 - 843
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We present a detailed study of the localized coupled-cavity modes in 2-D dielectric photonic crystals. The transmission, phase, and delay time characteristics of the various coupled-cavity structures are measured and calculated. We observed the eigenmode splitting, waveguiding through the coupled cavities, splitting of electromagnetic waves in waveguide ports, and switching effect in such structures. The corresponding field patterns and the transmission spectra are obtained from the finite-difference-time-domain (FDTD) simulations. We also develop a theory based on the classical wave analog of the tight-binding (TB) approximation in solid state physics. Experimental results are in good agreement with the FDTD simulations and predictions of the TB approximation.
Photonic bandgap (PBG)
Finite difference method
Solid state physics
Time domain analysis
Localized coupled-cavity modes
Photonic bandgap structures
Tight binding approximation
Published Version (Please cite this version)http://dx.doi.org/10.1109/JQE.2002.1017595
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