Proietti Zaccaria Remo, Verma Prabhat, Kawaguchi Satoshi, Shoji Satoru, Kawata Satoshi
1State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University 2699, Qianjin Street, Changchun 130012, China.
Opt Express. 2008 Sep 15;16(19):14812-20. doi: 10.1364/oe.16.014812.
The probability to realize a full photonic band gap in two-dimensional birefringent photonic crystals can be readily manipulated by introducing symmetry reduction or air holes in the crystal elements. The results lie in either creation of new band gaps or enlargement of existing band gaps. In particular, a combination of the two processes produces an effect much stronger than a simple summation of their individual contributions. Materials with both relatively low refractive index (rutile) and high refractive index (tellurium) were considered. The combined effect of introduction of symmetry reduction and air holes resulted in a maximum enlargement of the band gaps by 8.4% and 20.2%, respectively, for the two materials.
通过在晶体元件中引入对称性降低或气孔，可以很容易地控制二维双折射光子晶体中实现完全光子带隙的概率。结果是产生新的带隙或扩大现有的带隙。特别是，这两个过程的组合产生的效果比它们各自贡献的简单相加要强得多。研究了具有相对低折射率（金红石）和高折射率（碲）的材料。对于这两种材料，引入对称性降低和气孔的综合效应分别使带隙最大扩大了8.4%和20.2%。
