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    • 8. 发明申请
    • BANDWIDTH CONTROL DEVICE
    • 带宽控制装置
    • WO2007149282A2
    • 2007-12-27
    • PCT/US2007/013875
    • 2007-06-11
    • CYMER, INC.FOMENKOV, Igor, V.PARTLO, William, N.REILEY, Daniel, J.HOWEY, James, K.AGULIAR, Stanley, C.
    • FOMENKOV, Igor, V.PARTLO, William, N.REILEY, Daniel, J.HOWEY, James, K.AGULIAR, Stanley, C.
    • H01S3/10
    • H01S3/225H01S3/03H01S3/034H01S3/08009H01S3/137H01S3/2256
    • A method and apparatus is disclosed for operating a laser output light beam pulse line narrowing mechanism that may comprise a nominal center wavelength and bandwidth selection optic; a static wavefront compensation mechanism shaping the curvature of the selection optic; an active wavefront compensation mechanism shaping the curvature of the selection optic and operating independently of the static wavefront compensation mechanism. The method and apparatus may comprise the nominal center wavelength and bandwidth selection optic comprises a grating; the static wavefront compensation mechanism applies a pre-selected bending moment to the grating; the active wavefront compensation mechanism applies a separate selected bending moment to the grating responsive to the control of a bending moment controller based on bandwidth feedback from a bandwidth monitor monitoring the bandwidth of the laser output light beam pulses. The active wavefront compensation mechanism may comprise a pneumatic drive mechanism.
    • 公开了用于操作可以包括标称中心波长和带宽选择光学器件的激光输出光束脉冲线窄化机构的方法和装置; 静态波前补偿机构整形选择光学元件的曲率; 主动波前补偿机构整形选择光学元件的曲率并独立于静态波前补偿机制工作。 该方法和装置可以包括标称中心波长和带宽选择光学器件包括光栅; 静态波前补偿机构将预选的弯矩应用于光栅; 主动波前补偿机构响应于基于来自监视激光输出光束脉冲的带宽的带宽监视器的带宽反馈的弯矩控制器的控制,向光栅施加单独的选定弯矩。 主动波前补偿机构可以包括气动驱动机构。