Plasmonic absorbers for multispectral and broadband absorption
Date
2012
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Source Title
Proceedings of SPIE
Print ISSN
0277786X
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Publisher
SPIE
Volume
8269
Issue
Pages
82691J-1 - 82691J-10
Language
English
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Abstract
We present polarization dependent multispectral and broadband plasmonic absorbers in the visible spectrum. The spectral characteristics of these structures are tunable over a broad spectrum. Experimental results are verified with the FDTD and RCWA analysis methods. These structures are used as surface enhanced raman spectroscopy(SERS) substrates. Designed structures have resonances that span the Raman Stokes and excitation wavelength. Such structures can be used for energy, LED and other spectroscopy applications. © 2012 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
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Keywords
absorbers , coupled modes , fabry-perot mode , metamaterial absorbers , plasmon , SERS , absorbers , Analysis method , Broad spectrum , Broadband absorption , Coupled mode , Excitation wavelength , Fabry-Perot , Multi-spectral , Plasmonic , Raman Stokes , SERS , Spectral characteristics , Spectroscopy applications , Surface enhanced Raman spectroscopy , Visible spectra , Metamaterials , Nanostructures , Substrates , Plasmons