Infrared Perfect Absorber and Its Application As Plasmonic Sensor
Infrared Perfect Absorber and Its Application As Plasmonic Sensor
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DOI：
10.1021/nl9041033
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发表时间：
2010-07-01
期刊：
影响因子：
10.8
通讯作者：
Giessen, Harald
中科院分区：
文献类型：
--
作者：
Liu, Na;Mesch, Martin;Giessen, Harald
我们实验证明了一个完美的等离子体吸收器在λ = 16 μ m，其偏振无关的吸收率是99%，在正常入射，并保持非常高的入射角范围内约+/-我们引入了一种新的概念，利用这种完美的吸收体作为等离子体传感器用于折射率传感。这种传感策略提供了保持局部表面性能的巨大潜力。等离子体传感器，即使在非实验室环境中，由于其简单和鲁棒的测量方案
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