Multiple higher-order stop gaps in infrared polymer photonic crystals

被引:63
作者
Straub, M
Ventura, M
Gu, M
机构
[1] Swinburne Univ Technol, Sch Biophys Sci & Elect Engn, Ctr Microphoton, Hawthorn, Vic 3122, Australia
[2] Swinburne Univ Technol, Sch Biophys Sci & Elect Engn, ARC Ctr Excellence Ultrahigh Bandwidth Devices Op, Hawthorn, Vic 3122, Australia
基金
澳大利亚研究理事会;
关键词
D O I
10.1103/PhysRevLett.91.043901
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Engineering of stop gaps between higher photonic bands provides an alternative to miniaturization of photonic crystals. Femtosecond laser microfabrication of highly correlated void channel polymer microstructures results in photonic crystals with large stop gaps and a multitude of higher-order gaps in the mid- and near-infrared spectral regions. The gap wavelengths obey Bragg's law. Consistent with theory, varying the woodpile structure unit cell allows for tuning the number of higher-order gaps, and transitions from mere resonant Bragg scattering to stop band total reflection are observed.
引用
收藏
页数:4
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