Gap-edge Asymptotics of Defect Modes in 2D Photonic Crystals

We consider the evolution of defect modes created in complete band gaps of 2D photonic crystals by altering the dielectric constant in some region. We derive a simple exponential law which links the frequency difference between the defect mode and the band edge to the dielectric constant change.

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Bibliographic Details
Main Authors: Dossou, K.B., McPhedran, R.C., Botten, L.C., Asatryan, A.A., de Sterke, C.M.
Format: Conference Proceeding
Language:English
Subjects:
Boundary conditions
Dielectric constant
Electromagnetic wave polarization
Electrons
Frequency
Green function
Optical devices
Photonic band gap
Photonic crystals
Tellurium
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Description
Summary:We consider the evolution of defect modes created in complete band gaps of 2D photonic crystals by altering the dielectric constant in some region. We derive a simple exponential law which links the frequency difference between the defect mode and the band edge to the dielectric constant change.
ISSN:2161-7929
DOI:10.1109/COINACOFT.2007.4519133