Tailored transmission in gold-coated colloidal photonic crystals

被引：0
|
作者：
Ding, Boyang [2 ]
Pemble, Martyn E. [2 ]
Bardosova, Maria [2 ]
Korovin, Alexander V. [1 ]
Peschel, Ulf [1 ]
Romanov, Sergei G. [1 ,3 ]
机构：
[1] Univ Erlangen Nurnberg, Inst Opt Informat & Photon, Gunther Scharowsky Str 1, D-91058 Erlangen, Germany
[2] Univ Coll Cork, Tyndall Natl Inst, Prospect Cork, Ireland
[3] Ioffe Phys Tech Inst, Politekhnicheskaya 26, St Petersburg 194021, Russia
来源：
PHOTONIC CRYSTAL MATERIALS AND DEVICES IX | 2010年 / 7713卷
关键词：
hybrid 3-dimensional photonic crystal; Au film; photonic band gap; surface plasmon polariton; extraordinary transmission; EXTRAORDINARY OPTICAL-TRANSMISSION; BAND-GAP; SURFACE; HETEROSTRUCTURES; LATTICE; FILMS;
D O I：
10.1117/12.854588
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
We prepared thin film colloidal crystals, namely, opals and Langmuir-Blodgett crystals, of different lattice constants and coated them with 20, 50 and 100 nm thick gold films. Angle-resolved transmission spectra of these hybrid nanostructures were obtained using linear polarized light over a spectral range of a photonic bandgap energy structure of these colloidal photonic crystals. Up to 10 times transmission enhancement has been observed in specific spectral intervals determined by the light coupling to surface plasmon polaritons in the metal film. At the same time these hybrid nanostructures retain transmission attenuation bands inherited from a photonic crystal. The strong cross-correlation of the photonic bandgap and surface plasmon polariton properties was observed in the transmission spectra of studied hybrids.
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页数：10
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