MULTISPECTRAL PLASMONIC CRYSTAL SENSORS
    3.
    发明申请
    MULTISPECTRAL PLASMONIC CRYSTAL SENSORS 审中-公开
    多光谱PLASMONIC晶体传感器

    公开(公告)号:WO2008030666A3

    公开(公告)日:2008-10-09

    申请号:PCT/US2007074293

    申请日:2007-07-25

    CPC classification number: G01N21/554

    Abstract: The present invention provides plasmonic crystals comprising three-dimensional and quasi comprising three-dimensional distributions of metallic or semiconducting films, including multi-layered crystal structures comprising nanostructured films and film arrays. Plasmonic crystals of the present invention include precisely registered and deterministically selected nonplanar crystal geometries and spatial distributions providing highly coupled, localized plasmonic responses in thin film elements and/or nanostructures of the crystal. Coupling of plasmonic responses provided by three-dimensional and quasi-three dimensional plasmonic crystal geometries and structures of the present invention generates enhanced local plasmonic field distributions useful for detecting small changes in the composition of an external dielectric environment proximate to a sensing surface of the plasmonic crystal. Plasmonic crystal structures of the present invention are also useful for providing highly localized excitation and/or imaging of fluorophores proximate to the crystal surface.

    Abstract translation: 本发明提供包含三维和准包含金属或半导体膜的三维分布的等离子体激元晶体,包括包含纳米结构膜和膜阵列的多层晶体结构。 本发明的等离子体激元晶体包括精确配准和确定性选择的非平面晶体几何形状和空间分布,在晶体的薄膜元件和/或纳米结构中提供高度耦合的,局部等离子体激元响应。 由本发明的三维和准三维等离子体晶体几何形状和结构提供的等离子体激元响应的耦合产生增强的局部等离子体激元场分布,其可用于检测靠近等离子体激元的感测表面的外部电介质环境的组成的微小变化 水晶。 本发明的等离激元晶体结构也可用于提供靠近晶体表面的荧光团的高度局部激发和/或成像。

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