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10 September 2010 Permittivity manipulation of metal-dielectric composite for improved SPR sensing
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Abstract
We demonstrate a convenient method to improve the surface Plasmon resonance sensitivity by manipulating the permittivity of active medium using metal-dielectric (Ag-SiO2) composite monolayer. We demonstrate the successful permittivity engineering of SPR active medium in both theory and experiments. Based on the basic theory of SPR and Bruggeman effective medium theory (EMT), we theoretically confirm that the angular sensitivity enhances using manipulated permittivity of metal-dielectric composite layer.
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Haesung Park, Kwangchil Lee, Gumin Kang, Jinho Lee, Kyoungsik Kim, Seok-Jae Chung, and Soo-Hyun Kim "Permittivity manipulation of metal-dielectric composite for improved SPR sensing", Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 77572W (10 September 2010); https://doi.org/10.1117/12.860383
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