一维准晶中的有效布拉格条件。

Effective Bragg conditions in a one-dimensional quasicrystal.

作者信息

Hsueh W J, Chang C H, Cheng Y H, Wun S J

机构信息

Department of Engineering Science, National Taiwan University, Taipei, Taiwan.

出版信息

Opt Express. 2012 Nov 19;20(24):26618-23. doi: 10.1364/OE.20.026618.

DOI:10.1364/OE.20.026618

PMID:23187516

Abstract

We present occurrence of the effective Bragg conditions with wide gapwidth and high reflectance in a Fibonacci superlattice, which is a typical one-dimensional quasicrystal. In the Fibonacci material, the number of effective Bragg conditions is two rather than one which appears in traditional periodic structures. Based on the effective Bragg conditions, this study proposes existence of omnidirectional, wideband and high reflectance in the quasiperiodic materials analogous to that in traditional materials.

摘要

我们展示了在斐波那契超晶格中有效布拉格条件的出现，该超晶格是一种典型的一维准晶体，具有宽禁带宽度和高反射率。在斐波那契材料中，有效布拉格条件的数量为两个，而非传统周期结构中出现的一个。基于有效布拉格条件，本研究提出准周期材料中存在类似于传统材料的全向、宽带和高反射率特性。