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Authors: K.C. Huang, P. Bienstman, J.D. Joannopoulos, K.A. Nelson, S. Fan
Title: Phonon-polariton excitations in photonic crystals
Format: International Journal
Publication date: 8/2003
Journal/Conference/Book: Physical Review B
Volume(Issue): 68 p.075209
DOI: 10.1103/physrevb.68.075209
Citations: 67 (Dimensions.ai - last update: 18/4/2021)
50 (OpenCitations - last update: 12/4/2021)
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Abstract

The incorporation of materials which exhibit transverse phonon-polariton excitations into a photonic crystal produces an intricate optical system possessing unique and varied photon phenomena. In particular, we demonstrate theoretically that such a system will exhibit both near-dispersionless bands with field localization in the polaritonic material and metalliclike bands with complete flux expulsion in an extremely small frequency interval around the characteristic phonon frequency. Moreover, when the fundamental resonances of the polaritonic rods overlap with the bands of a geometrically identical metallodielectric crystal, nearby states will couple to produce a band in which the localized field varies continuously between two distinct nodal patterns, in an exceedingly small frequency range. We also discuss the implications of losses on these phenomena and verify that our results can be realized experimentally.

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