pbs(光学术语)【光学术语 pbs】PBS(polarization beam splitter)偏振分光稜镜,能把入射的非偏振光分成两束垂直的线偏光 。其中P偏光完全通过,而S偏光以45度角被反射,出射方向与P光成90度角 。此偏振分光稜镜由一对高精度直角稜镜胶合而成,其中一个稜镜的斜边上镀有偏振分光介质膜
基本介绍中文名:偏振分光稜镜
外文名:pbs
释义:将自然光分为P光和S光
全称:polarization beam splitter
PBS(polarization beam splitter)偏振分光稜镜偏振分光稜镜能把入射的非偏振光分成两束垂直的线偏光 。其中P偏光完全通过,而S偏光以45度角被反射,出射方向与P光成90度角 。此偏振分光稜镜由一对高精度直角稜镜胶合而成,其中一个稜镜的斜边上镀有偏振分光介质膜 。
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MaterialBK7, SF glassDimension Tolerance±0.2mmExtinction Ratio>100:1 for broadband, >500:1 for narrow bandSurface Quality60/40 scratch and digClear Aperture>90%Beam Deviation<3 arc minutesFlatnessλ/4@632.8nm per 25mmPrincipal TransmittanceNarrow: Tp>95% and Ts<1%Broad: Tp>90% and Ts<1%Principal ReflectanceNarrow: Rs>99% and Rp<5%Broad: Rs>99% and Rp<10%CoatingPolarization beamsplitter coating on hypotenuse faceAR coating on all input and output facesDamage Threshold>500mJ/cm, 20ns, 20Hz, @1064nmStandard Sizes:10*10*10mm12.7*12.7*12.7*mm15*15*15mm20*20*20mm25.4*25.4*25.4mmStandard Wavelength:450-650nm600-900nm900-1200nm