| 受抑全内反射的偏振分光器 |
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| 引用本文： | 颜鹰,王聪,李晓平,史铁林.受抑全内反射的偏振分光器[J].红外与激光工程,2005,34(4):406-409. |
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| 作者姓名： | 颜鹰 王聪 李晓平 史铁林 |
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| 作者单位： | 华中科技大学,微系统研究中心,湖北,武汉,430074 |
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| 基金项目： | 国家自然科学基金资助项目（50405033）;国家重点基础研究（973计划）项目（2003CB716207） |
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| 摘 要： | 概述了薄膜偏振分光器的研究现状及其主要特点,对不同于MacNeille设计原理的受抑全内反射偏振分光器进行了研究,这种偏振分光器基于受抑全内反射和薄膜干涉原理,当入射角大于临界角时,在宽波段宽角度范围内反射P偏振光,透射S偏振光。重点分析这种偏振分光器的设计原理,设计了波长范围为420￣680 nm、空气中的入射角范围为±10°、膜系的消光比为TS/TP≥1000的用于背投系统的薄膜偏振分光器。
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| 关 键 词： | 偏振分光器 受抑全内反射 消光比 带宽 |
| 文章编号： | 1007-2276(2005)04-0406-04 |
| 收稿时间： | 2004-08-10 |
| 修稿时间： | 2004年8月10日 |
Polarizing beam splitter based on frustrated total internal reflection |
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| YAN Ying,WANG Cong,LI Xiao-ping,SHI Tie-lin.Polarizing beam splitter based on frustrated total internal reflection[J].Infrared and Laser Engineering,2005,34(4):406-409. |
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| Authors: | YAN Ying WANG Cong LI Xiao-ping SHI Tie-lin |
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| Abstract: | The existing status and main characters of thin- film polarizing beam splitter (PBS) are pre- sented and demonstrated. Frustrated total internal reflection and thin film interference are simultaneously employed to allow S- polarized light to be transmitted and P- polarized light to be reflected over a wide range of wavelengths and angles of incidence. The PBS is operated at angles greater than the critical an- gle. The basic design principle is emphatically analyzed. The design of PBS is applied in projection sys- tem. The spectral wavelength region of the design is 420～680 nm,with the range of incident angle of ± 10°in air.The extinction ratios for the reflected and transmitted beams are over 1000. |
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| Keywords: | PBS FTIR(frustrated total internal reflection) Extinction ratio Broadband |
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