Volume 74, Number 1, April 2006
|Page(s)||49 - 54|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||01 March 2006|
The effect of short-range and long-range orientational orders on the transmission properties of quasiperiodic photonic crystals
Academy of Physics and Electronic Engineering, Central University for Nationalities - Beijing 100081, PRC
2 Optical Physics Laboratory, Institute of Physics Chinese Academy of Sciences - Beijing 100080, PRC
Accepted: 13 February 2006
The effect of short-range and long-range orientational orders on the optical properties of 12-fold quasiperiodic photonic crystals is studied in this paper. We pick up a quasicrystalline supercell from the quasicrystal and construct two new periodic structures by arranging the supercell into square and triangular lattices. Numerical simulations show that the two periodic structures have very similar transmission properties to the quasiperiodic structure in regard to band and band gap positions, although these three structures have different long-range orientational orders, which are 4-fold, 6-fold, and 12-fold, respectively. In addition, their transmission properties are closely related with the propagation behavior of EM waves through the single building supercell. All these characteristics indicate that the optical properties of quasiperiodic photonic crystals are mainly determined by the local short-range geometric properties of the quasicrystal instead of the long-range orientational order.
PACS: 42.70.Qs – Photonic bandgap materials / 42.25.Bs – Wave propagation, transmission and absorption
© EDP Sciences, 2006
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