Rectangular-cavity resonances enhanced absorption in metallic-nanoshelled 2D rod arrays and 3D photonic crystals

被引：2
作者：
Li, Jiafang [1 ,2 ,3 ]
Hossain, Md Muntasir [1 ,2 ]
Jia, Baohua [1 ,2 ]
Gu, Min [1 ,2 ]
机构：
[1] Swinburne Univ Technol, Fac Engn & Ind Sci, Ctr Microphoton, Hawthorn, Vic 3122, Australia
[2] Swinburne Univ Technol, Fac Engn & Ind Sci, CUDOS, Hawthorn, Vic 3122, Australia
[3] Chinese Acad Sci, Inst Phys, Lab Opt Phys, Beijing 100190, Peoples R China
来源：
NEW JOURNAL OF PHYSICS | 2010年 / 12卷
基金：
澳大利亚研究理事会;
关键词：
OPTICAL-ABSORPTION;
D O I：
10.1088/1367-2630/12/4/043012
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A metallic-nanoshelled rectangular dielectric rod is proposed to flexibly enhance and tune the structural absorption. Due to the ultra-small thickness of the metallic-nanoshells, electromagnetic (EM) waves can penetrate into the rods and rectangular cavity resonances can be formed. At the cavity resonances, the strong EM wave-matter interaction results in an enhancement in the structural absorption by more than one order of magnitude. By stacking the nanoshelled rods, a three-dimensional (3D) woodpile photonic crystal with both the rectangular cavity resonance and the photonic band gap effect is realized. As a result, the structural absorption of the nanoshelled 3D photonic crystal is significantly enhanced to similar to 99(99% at the resonant wavelength.
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页数：7
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