Optical device and method for line-narrowed excimer or molecular fluorine laser
    2.
    发明授权
    Optical device and method for line-narrowed excimer or molecular fluorine laser 失效
    用于线狭窄的准分子或分子氟激光的光学装置和方法

    公开(公告)号:US06515741B1

    公开(公告)日:2003-02-04

    申请号:US09454803

    申请日:1999-12-03

    IPC分类号: G01N2100

    摘要: An apparatus and method for testing the quality of a line narrowing and/or selection module that has been particularly assembled for use with a line-narrowed excimer or molecular fluorine laser is described. The method includes providing a test beam which has been previously line-narrowed using an installed line-narrowing and/or selection module. Then, the test beam is directed into the test module. Next, the one or more properties of the retroreflected beam are measured, i.e., after the beam has traversed the test module. The quality of the test module and one or more of its components may be determined based on the measurements. Such properties as wavefront distortions, excessive scattering, total reflectivity, total dispersion and aging of components of the test module may be measured for making this quality determination.

    摘要翻译: 描述了一种用于测试特别组装用于线狭窄的准分子或分子氟激光的线狭窄和/或选择模块的质量的装置和方法。 该方法包括提供已经使用安装的线狭窄和/或选择模块预先线狭窄的测试梁。 然后,测试光束被引导到测试模块中。 接下来,测量回射光束的一个或多个属性,即在光束穿过测试模块之后。 可以基于测量来确定测试模块及其一个或多个组件的质量。 可以测量波长失真,过度散射,总反射率,测试模块的组件的总体色散和老化等特性以进行该质量测定。