读书笔记摘抄新闻资讯pbs(光学术语)
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。
Material | BK7, SF glass |
Dimension Tolerance | ±0.2mm |
Extinction Ratio | >100:1 for broadband, >500:1 for narrow band |
Surface Quality | 60/40 scratch and dig |
Clear Aperture | >90% |
Beam Deviation | <3 arc minutes |
Flatness | λ/4@632.8nm per 25mm |
Principal Transmittance | Narrow: Tp>95% and Ts<1% Broad: Tp>90% and Ts<1% |
Principal Reflectance | Narrow: Rs>99% and Rp<5% Broad: Rs>99% and Rp<10% |
Coating | Polarization beamsplitter coating on hypotenuse face AR coating on all input and output faces |
Damage Threshold | >500mJ/cm, 20ns, 20Hz, @1064nm |
Standard Sizes： | 10*10*10mm |
12.7*12.7*12.7*mm | |
15*15*15mm | |
20*20*20mm | |
25.4*25.4*25.4mm | |
Standard Wavelength: | 450-650nm |
600-900nm | |
900-1200nm |