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Photonic band gap of a graphene-embedded quarter-wave stack

TitlePhotonic band gap of a graphene-embedded quarter-wave stack
Publication TypeJournal Article
Year of Publication2013
AuthorsFan, YC, Wei, ZY, Li, HQ, Chen, H, Soukoulis, CM
JournalPhysical Review B
Volume88
Pagination241403
Date Published12
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberWOS:000328678600005
Keywordscrystal, light
Abstract

Here, we present a mechanism for tailoring the photonic band structure of a quarter-wave stack without changing its physical periods by embedding conductive sheets. Graphene is utilized and studied as a realistic, two-dimensional conductive sheet. In a graphene-embedded quarter-wave stack, the synergic actions of Bragg scattering and graphene conductance contributions open photonic gaps at the center of the reduced Brillouin zone that are nonexistent in conventional quarter-wave stacks. Such photonic gaps show giant, loss-independent density of optical states at the fixed lower-gap edges, of even-multiple characteristic frequency of the quarter-wave stack. The conductive sheet-induced photonic gaps provide a platform for the enhancement of light-matter interactions.

DOI10.1103/PhysRevB.88.241403
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Metamaterials