Infrared Perfect Absorber and Its Application As Plasmonic Sensor

被引：2615
作者：
Liu, Na [1 ]
Mesch, Martin [1 ]
Weiss, Thomas [1 ]
Hentschel, Mario [1 ]
Giessen, Harald [1 ]
机构：
[1] Univ Stuttgart, Inst Phys 4, D-70569 Stuttgart, Germany
来源：
NANO LETTERS | 2010年 / 10卷 / 07期
关键词：
Perfect absorbers; LSPR resonances; infrared sensors; glucose sensing; plasmonics; OPTICAL-PROPERTIES; METAMATERIALS; ABSORPTION; RESONANCES;
D O I：
10.1021/nl9041033
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We experimentally demonstrate a perfect plasmonic absorber at lambda = 16 mu m Its polarization-independent absorbance is 99% at normal incidence and remains very high over a wide angular range of incidence around +/- 80 degrees We introduce a novel concept to utilize this perfect absorber as plasmonic sensor for refractive index sensing This sensing strategy offers great potential to maintain the performance of localized surface plasmon sensors even in nonlaboratory environments due to its simple and robust measurement scheme
引用
收藏
页码：2342 / 2348
页数：7
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