偏振滤光片
偏振滤光片这些滤光片是Semrock独有的,它将高效的偏振器和带通滤光片组合在一个光学元件中!这些专利滤光片是具有对比度超过1000000比1的极好的线性偏振器。此外,具有高性能的带通特性(包括高透射和陡缘),是一种出色的激光源纯化滤光片(消除了不需要的偏振和远离激光波长的光噪声),以及通过激光波长范围和阻挡背景噪声的检测滤光片。美国专利号8879150。semrock的偏振带通滤光片是各种实验室激光应用的理想选择,特别是那些涉及全息干涉系统,以及荧光偏振检测和成像,二次谐波成像、通信、测距极化分集检测、激光材料加工、激光强度控制的应用。这些独特的偏振带通滤光片在单个光学元件中提供了极好的线性偏振和优化的带通滤光。对比率>1000000:1优化通带内的高透射率( 95%)(对于p偏振光)卓越的光学质量-低散射,波前畸变和光束偏移硬镀膜的可靠性和高激光损伤阈值(1焦耳/平方厘米)提供了大孔径大小和90o分束器的功能25毫米和25.2×35.6毫米滤光片大小可用标称激光波长AOI的波长范围= 45°±0.5°用于标称激光波长的AOI范围OD 2平均偏振屏蔽范围平均OD 6 s-pol阻断范围6 p-pol阻断范围的平均值型号355 nm346 – 361 nm38° – 52°434 – 1100 nm300 – 455 nm300 – 339 nm369 – 434 nmPBP01-353/15-405 nm400 – 410 nm41° – 51°300 – 332 nm490 – 1100 nm320 – 516 nm332 – 388 nm422 – 490 nmPBP01-405/10-532 nm518 – 541 nm38° – 52°300 – 418 nm664 – 1100 nm400 – 695 nm418 – 502 nm557 – 664 nmPBP01-529/23-640 nm628.5 – 650 nm40.5° – 51°300 – 511 nm795 – 1100 nm488 – 840 nm511 – 602 nm675 – 795 nmPBP01-639/21-1064 nm1038 – 1081 nm39° – 51°300 – 851 nm1307 – 1750 nm720 – 1393 nm851 – 996 nm1120 – 1307 nmPBP01-1059/43-Beamsplitter MountPart NumberDesigned for single, 25.2 x 35.6 x 1.0 to 2.0 mmbeamsplitters in laboratory bench-top set ups.BSM常用规格属性ValueComments保证传输率 95%p-polarized light比例1,000,000:1Ratio of transmission through two identical alignedpolarizers to transmission through same pair ofcrossed polarizersBlockingSee table on page 80AOI tolerance (See table on page 80)Nominal Angle of Incidence45°10 ns pulse width p-pol (See page 102)激光损伤阈值1 J/cm2 @ 532 nm基底材料Ultra-low autofluorescence fused silica尺寸和公差25.2 mm x 35.6 mm x 2.0 mm +/- 0.1 mm25.0 mm x 2.0 mm +/- 0.1 mmMount options on page 80 for 25.2 x 35.6 mm size25.0 mm (unmounted)通光孔径≥ 85%Elliptical, for all optical specifications透射波前误差Peak-to-valley error clear aperture光束偏差≤ 10 arc secondsMeasured per inch表面质量40-20 scratch-digMeasured within clear apertureOrientationCoating (Text) towards lightCoating (Text) away from lightFor use as a polarizerFor use as an analyzer