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Title: High-performance bimetallic SPR sensor based on periodic-multilayer- waveguides
Authors: Srivastava T.
Jha R.
Das R.
Keywords: Photonic bandgap
Issue Date: 2011
Citation: 33
Abstract: We propose a high-performance bimetallic surface plasmon resonance (SPR) sensor based on periodic-multilayer waveguide and analyze its performance with respect to SPR active metals, such as gold (Au) and aluminum (Al). We found that an ultra thin (? 3 nm) layer of gold (Au) over aluminum (Al) protects aluminum (Al) from oxidation and exhibits better sensor performance. Using couple-mode theory, we show that the sensitivity and detection accuracy could be appropriately tailored for bimetallic (Au+Al) configuration. � 2011 IEEE.
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