Infrared Perfect Absorber and Its Application As Plasmonic Sensor

We experimentally demonstrate a perfect plasmonic absorber at λ = 1.6 μm. Its polarization-independent absorbance is 99% at normal incidence and remains very high over a wide angular range of incidence around ±80°. We introduce a novel concept to utilize this perfect absorber as plasmonic sensor for...

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Bibliographic Details

Published in:	Nano letters 2010-07, Vol.10 (7), p.2342-2348
Main Authors:	Liu, Na, Mesch, Martin, Weiss, Thomas, Hentschel, Mario, Giessen, Harald
Format:	Article
Language:	English
Subjects:	Collective excitations (including excitons, polarons, plasmons and other charge-density excitations) Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Exact sciences and technology General equipment and techniques Instruments, apparatus, components and techniques common to several branches of physics and astronomy Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures Physics Sensors (chemical, optical, electrical, movement, gas, etc.) remote sensing Surface and interface electron states
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