基于TFT-LCD的相位型菲涅尔波带片生成的中空光束  

Hollow Beam Generated from Phase-model Fresnel Zone Plate Based on TFT-LCD

作　　者：范君柳[1] 朱爱敏[1] 

机构地区：[1]苏州科技学院数理学院,江苏苏州215009

出　　处：《红外》2010年第1期26-29,共4页Infrared

基　　金：苏州科技学院教学质量工程"光电信息技术课程群教学改革与实践"项目(2008YQ-06)

摘　　要：中空光束具有特殊的物理性质,在光信息处理、微电子学、同位素分离和分子光学等领域有着广泛的应用。本文提出采用TFT-LCD制作相位型菲涅尔波带片,平面波经TFT-LCD衍射生成中空光束。实验结果表明,基于TFT-LCD的菲涅尔波带片生成的中空光束具有实时可调、快捷和精确等优点。A hollow beam has its particular physical properties and has wide applications in the fields of optical information process, microeleetronics, isotope seperation and molecule optics etc.. A TFT- LCD is proposed to be used to fabricate a phase-mode Fresnel Zone Plate and hence a hollow beam can be formed by the plane wave via the TFT LCD. The experimental result shows that the hollow beam generated from the Fresnel Zone Plate based on a TFT-LCD has the advantages of real-time adjustability, simplicity and accuracy.

关 键 词：TFT—LCD 菲涅尔波带片 中空光束 

分 类 号：O439[机械工程—光学工程] O436.1[理学—光学]