Optical amplifier and method for amplifying optical polarization state
change effects
    1.
    发明授权
    Optical amplifier and method for amplifying optical polarization state change effects 失效
    光放大器和放大光偏振态变化效应的方法

    公开(公告)号:US4902134A

    公开(公告)日:1990-02-20

    申请号:US152005

    申请日:1988-02-03

    IPC分类号: G01J4/04 G01N21/03 G01N30/74

    CPC分类号: G01J4/04 G01N21/031

    摘要: An optical amplifier for amplifying optical polarization state change effects comprises an arrangement for passing polarized light through a material a plurality of times such that changes in the polarization state of the polarized light from the respective passes of the light through the material are cumulative. The amplifier can be used in a method for detecting optical polarization state change effects wherein polarized light which is passed through the material is detected. The material may be a liquid sample from a high performance liquid chromatography system.

    摘要翻译: 用于放大光学偏振态变化效应的光放大器包括用于使偏振光通过材料多次的装置,使得来自通过材料的光的相应通过的偏振态的偏振状态的变化是累积的。 放大器可用于检测通过材料的偏振光的光学偏振态变化效应的方法。 该材料可以是来自高效液相色谱系统的液体样品。

    Simultaneous multiple angle/multiple wavelength ellipsometer and method
    2.
    发明授权
    Simultaneous multiple angle/multiple wavelength ellipsometer and method 失效
    同时多角度/多波长椭偏仪及方法

    公开(公告)号:US5166752A

    公开(公告)日:1992-11-24

    申请号:US640100

    申请日:1990-01-11

    IPC分类号: G01N21/21

    CPC分类号: G01N21/211

    摘要: The ellipsometer and method involve directing polarized light for interaction with an optical system under study at different angles of incidence from a single beam of light and detecting the light interacted with the optical system by reflection and/or transmission for each of a plurality of different angles of incidence. The simultaneous illumination of the optical system under study at a whole range of angles of incidence from a single beam of light and the collection a large multiplicity of data from the different angles detected can be accomplished rapidly and easily and with accuracy without scanning and with only one ellipsometer. A lens is used to focus the incoming light to provide the range of different angles of incidence. The range of angles is at least one or two degrees and preferably thirty degrees or more. A second lens refocuses the interacted light to a linear, multi-element detector array which extends in the plane of the incidence. Each of the detector elements detects a narrow range of angles of incidence within the relatively wider range of angles of incidence of the illuminating beam. If the incident illuminating rays are polychromatic and a wavelength dispersing element acts on the reflected rays each detector element of a square array detects a narrow range of wavelengths and angles of incidence.

    摘要翻译: 椭偏仪和方法涉及引导偏振光以与来自单个光束的不同入射角的研究中的光学系统相互作用,并且通过用于多个不同角度中的每一个的反射和/或透射来检测与光学系统相互作用的光 的发病率。 在单光束的整个入射角范围内同时照射研究的光学系统,并且从检测到的不同角度收集大量数据可以快速而容易地并且准确地实现,而无需扫描和仅使用 一个椭偏仪。 使用透镜来聚焦入射光以提供不同入射角的范围。 角度范围为至少一度或二度,优选三十度以上。 第二透镜将相互作用的光重新聚焦到在入射平面中延伸的线性多元素检测器阵列。 每个检测器元件在照明光束的相对较宽的入射角范围内检测入射角的窄范围。 如果入射照明光线是多色的并且波长分散元件作用在反射光线上,则每个方阵的检测器元件检测波长和入射角的窄范围。