A thermal emitter with selective wavelength: Based on the coupling between photonic crystals and surface plasmon polaritons

被引：8
作者：
Fu, Han-Kuei [1 ]
Jiang, Yu-Wei [2 ]
Tsai, Ming-Wei [2 ]
Lee, Si-Chen [2 ]
Chen, Yang-Fang [1 ]
机构：
[1] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan
[2] Natl Taiwan Univ, Dept Elect Engn, Grad Inst Elect Engn, Taipei 106, Taiwan
来源：
JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 03期
关键词：
dielectric thin films; heat radiation; metallic thin films; photonic band gap; photonic crystals; polaritons; silicon; silicon compounds; silver; surface plasmons; thermo-optical effects; BAND-GAP STRUCTURES; OMNIDIRECTIONAL REFLECTOR; TRANSMISSION; APERTURES;
D O I：
10.1063/1.3074293
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A thermal emitter with selective wavelength has been demonstrated in which the dielectric layers formed one-dimensional photonic crystals are sandwiched between two Ag films. The top Ag film is perforated periodically with hexagonal hole array. The selected thermal radiation of the photonic crystals resonates between two metal films and surface plasmon polaritons are generated on the top Ag and converted to light radiation. It is found that when leakage modes adjacent to the optic band gap of photonic crystals meet the resonant modes of surface plasmom polaritons, an enhanced thermal emission with maximum intensity can be obtained. The hybrid photonic and plasmonic thermal emitters are selective, which should be very useful for the creation of high power infrared light sources.
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页数：5
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