微分干涉相衬显微镜中偏光棱镜设计  

Design of birefringent prisms in differential interference contrast microscopy

作　　者：蔡昕[1] 徐毓娴[1] 张志利[1] 

机构地区：[1]清华大学精密仪器与机械学系,北京100084

出　　处：《光学技术》2001年第3期229-231,234,共4页Optical Technique

基　　金：国家自然科学基金资助 !(599750 52 )

摘　　要：微分干涉相衬显微测量术在生物医学、材料科学等领域中有广泛应用 ,其中偏振分光棱镜设计是关键技术之一。对应用于微分干涉相衬显微系统中的偏振分光棱镜 Nomarski棱镜的主要参数之间的关系进行分析 ,并做了设计计算 ,得出了一些有实用价值的结论 ,使 Nomarski棱镜的设计更简便 。Differential interference contrast (DIC) measurement is used widely in biomedicine engineering and materials science, in which the design of birefringent prisms in a key technique. Parameters of the birefringent prisms in DIC microscopic system are calculated according to the principles of ray path calculation. The results are analyzed to obtain the influence coefficients of parameters upon the prisms' characteristics. The influence coefficients are very useful in the design process, which make the design of Nomarski prisms easy and play an important role in promoting the application and extension of the DIC measurement.

关 键 词：微分干涉相衬 Nomarski棱镜 分束角 相干平面 显微镜 显微测量 

分 类 号：TH741.3[机械工程—光学工程]