双层光子晶体最大各向同性带隙的简单表达式。

Simple expressions for the maximum omnidirectional bandgap of bilayer photonic crystals.

机构信息

Department of Engineering Science, National Taiwan University, 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan.

出版信息

Opt Lett. 2011 May 1;36(9):1581-3. doi: 10.1364/OL.36.001581.

DOI:10.1364/OL.36.001581

Abstract

We propose three dimensionless approximate expressions to predict the thickness filling factor, gap center, and gap width of the maximum omnidirectional gap (MODG) for various refractive indices in one-dimensional photonic crystals. These expressions are simple and do not include trigonometric or inverse trigonometric functions. It is easy to obtain the MODG from given refractive indices but also to estimate the refractive indices from the MODG based on the results.

摘要

我们提出了三个无量纲的近似表达式，用于预测一维光子晶体中各种折射率的最大各向同性间隙（MODG）的厚度填充因子、间隙中心和间隙宽度。这些表达式简单，不包括三角函数或反三角函数。根据给定的折射率很容易获得 MODG，也可以根据结果从 MODG 估计折射率。