Tight-binding photonic bands in metallophotonic waveguide networks and flat bands in kagome lattices

Shimpei Endo, Takashi Oka, Hideo Aoki

研究成果: Article査読

27 被引用数 (Scopus)

抄録

We propose that we can realize "tight-binding photonic bands" in metallophotonic waveguide networks, where the photonic bound states localized around the crossings of a network form a tight-binding band. The formation of bound states at the crossings is distinct from the conventional bound states at defects or virtual bound states in photonic crystals, but comes from a photonic counterpart of the zero-point states in wave mechanics. Model calculations show that the low-lying photon dispersions are indeed described accurately by the tight-binding model. To exemplify how we can exploit the tight-binding analogy for designing of photonic bands, we propose a "flat photonic band" in the kagome network, in which the photonic flat band is shown to arise with group velocities that can be as small as 1/1000 times the velocity of light in vacuum.

本文言語English
論文番号113104
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
81
11
DOI
出版ステータスPublished - 2010 3 17
外部発表はい

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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