Development of Refractive Index Matching Adhesive for Optical Components

Stream Technologies拥有用于高光谱成像的专利系统，该系统依赖于对 层层交替的高和低折射率材料，形成了一系列平面波导。程序集是 取决于粘合剂；但是，粘合剂的折射率必须与玻璃(1.77)匹配，对于 技术发挥作用。Stream的应用要求棱镜之间的结合是永久的，因此， 需要一种粘合剂/环氧树脂来永久粘合这两个棱镜。这项提议的目标是制定一项 适用于Stream应用的新型粘合剂，其折射率接近所需的1.77值。此外， 胶粘剂应易于使用，在较宽的温度范围内稳定，并产生无缺陷的粘接。 棱镜。STREAM还需要一种易于在棱镜表面上涂抹的粘合剂，可在空气中固化或 一旦暴露在紫外线或高温下，具有较长的保质期，并可传输400纳米的波长 -2微米的井。

Stream Technologies has a patented system used for hyperspectral imaging which relies on precise control of layers of alternating high and low index materials, creating a series of planar waveguides. The assembly is dependent on an adhesive; however, the adhesive's refractive index must be matched to the glass (1.77), for the technology to function. Stream's application demands that the bond between the prisms is permanent, therefore, an adhesive/epoxy is needed to permanently bond the two prisms. The objective of this proposal is to develop a new adhesive for Stream's application that has a refractive index closer to the required 1.77 value. Furthermore, the adhesive should be easy to use, stable over a wide temperature range, and yield a defect-free bond between the prisms. Stream would also like an adhesive that is easy to spread on the prism surfaces, curable in air or upon exposure to UV light or elevated temperature, has a long shelf life, and transmits wavelengths of 400 nm - 2 microns well.