Hybrid Brewster's angle wire grid infrared polarizer
    1.
    发明授权
    Hybrid Brewster's angle wire grid infrared polarizer 失效
    混合布鲁斯特角线网红外线偏振器

    公开(公告)号:US4221464A

    公开(公告)日:1980-09-09

    申请号:US952170

    申请日:1978-10-17

    IPC分类号: G02B5/30

    CPC分类号: G02B5/3066 G02B5/3058

    摘要: There is disclosed a polarizer particularly suited for use in the infrared wavelengths which comprises a wire grid polarizer in optically cascaded relationship with a Brewster's Angle Polarizer. Not only do the extinction ratios of the optically cascaded polarizers multiply to provide higher extinction ratios at these wavelengths, but also the reflective mirror properties of the wire grid polarizers can be used in combination with the known optical properties of Brewster Polarizers to provide a combined device which optimizes both the extinction ratios achieved and the balance between the reflection and recombination problem of the system on the one hand and the offset or beam walking problem on the other hand in a manner to provide optical characteristics which are not achievable from any simple combinations of either type of polarizer alone.

    摘要翻译: 公开了一种特别适用于红外波长的偏振器,其包括与布鲁斯特角度偏振器在光学级联关系中的线栅偏振器。 光学级联偏振器的消光比不仅在这些波长处倍增以提供较高的消光比,而且还可以将布线极化器的反射镜特性与布鲁斯特偏振器的已知光学特性结合使用以提供组合装置 其优化了所获得的消光比和系统的反射和复合问题之间的平衡以及偏移或光束行走问题,另一方面提供了通过任何简单组合不能实现的光学特性的方式 任何一种类型的偏振器单独。