Coupling characteristics of localized photons in two-dimensional photonic crystals

Authors
Kee, CSLim, HLee, J
Issue Date
2003-02-15
Publisher
AMERICAN PHYSICAL SOC
Citation
PHYSICAL REVIEW B, v.67, no.7
Abstract
We show that the coupling behavior between defect modes in photonic crystals can be quite different from that between electrons confined in atoms. The parity of the defect modes split due to the coupling is not conserved as the interdefect distance changes. This parity nonconservation is attributed to the oscillatory nature of the evanescent waves of localized photons. The rapid decay of the field of localized photons in some coupling directions makes the coupling between localized photons for those directions very weak even if the distance between the defects is very close. These characteristics of the coupling between the localized photons will be useful in the implementations of directional optical filters and of narrow band waveguides.
Keywords
BAND-STRUCTURE; DEFECT MODES; EMISSION; BAND-STRUCTURE; DEFECT MODES; EMISSION; two-dimensional photonic crystals
ISSN
1098-0121
URI
https://pubs.kist.re.kr/handle/201004/138816
DOI
10.1103/PhysRevB.67.073103
Appears in Collections:
KIST Article > 2003
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