Planar and other waveguide refractive index sensors using metal cladding
    2.
    发明授权
    Planar and other waveguide refractive index sensors using metal cladding 失效
    平面和其他使用金属包层的波导折射率传感器

    公开(公告)号:US5165005A

    公开(公告)日:1992-11-17

    申请号:US646148

    申请日:1991-01-24

    摘要: A species-specific metal clad segment on a waveguide, including a planar waveguide, allows controlled light leakage of light propagating through the waveguide by total internal reflection, to measure refractive index and identify chemical species. A waveguide sensor is designed for a particular chemical species by selecting a metal clad with an affinity for the species and by matching the refractive indices of the waveguide body, clad, metal clad segment and chemical species. Dual or multiple measurement methods use a pair or multiple metal clad segments of different specificity. The metal clad segment may include another material to provide a suitable refractive index while having the desired affinity for the chemical species or to provide a catalyst to react the species to form a reaction product which is more readily detected.

    摘要翻译: 包括平面波导在波导上的物种特定的金属包层段允许通过全内反射传播通过波导的光的受控光泄漏,以测量折射率并识别化学物质。 波导传感器通过选择对物质具有亲和性的金属包层并通过匹配波导体,包层,金属包层和化学物质的折射率来设计用于特定化学物质。 双重或多重测量方法使用不同特异性的一对或多个金属包层。 金属包覆段可以包括另外的材料以提供合适的折射率,同时具有对于化学物质的期望的亲和力,或提供催化剂以使物质反应形成更易于检测的反应产物。