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  • Title: Experimental realization of plasmonic filters for multispectral and dual-polarization optical detection.
    Author: Yang ZP, Lin SY.
    Journal: Opt Lett; 2009 Dec 15; 34(24):3893-5. PubMed ID: 20016649.
    Abstract:
    We report the design and implementation of a new class of plasmonic filters that are both wavelength and polarization selective. The plasmonic filter consists of a five-layer metallic photonic crystal structure and operates inside the photonic bandgap regime. We show that by manipulating the middle layer geometry alone, it is possible to tune the Fabry-Perot resonance over a broad spectral range (lambda=1.25to1.63 microm) and in a monolithic fashion. Furthermore, we show that the resonance has a definite polarization character that is determined by the orientation of the first layer grating. The plasmonic filter may be integrated with an array of photodetectors for high-throughput spectral and polarimetric imaging applications.
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