光纤共焦系统中影响轴向分辨特性的因素分析  

Various effects on axial resolution in fiber-optical confocal microscopy system

作　　者：邹丽敏[1] 李溪[1] 丁雪梅[1] 

机构地区：[1]哈尔滨工业大学超精密光电仪器工程研究所,黑龙江哈尔滨150080

出　　处：《红外与激光工程》2008年第S1期79-83,共5页Infrared and Laser Engineering

基　　金：国家自然科学基金资助项目(50675052)

摘　　要：为了提高光纤共焦显微成像系统的轴向分辨力,分析了光纤光斑尺寸、瞳半径,环形透镜、光纤与透镜的匹配等对该系统轴向分辨率的影响。利用光纤共焦成像系统的三维相干传递函数,对一理想反射镜进行轴向扫描,建立系统的轴向响应函数,分析和研究了各参数对系统轴向分辨力的影响。实验结果表明,为使系统获得较高的轴向分辨率,需控制与光纤光斑尺寸有关的参数A≤3,选用放大倍率较大的物镜,并使透镜的数值孔径小于光纤数值孔径,而在光纤共焦系统中引入环形透镜并不能提高系统的轴向分辨力。For the Axial Resolution improvement purpose,fiber spot size,pupil radius,pupil filters,matching of fiber and lens were studied in this paper.Based on the three-dimension transfer function of Fiber-optical Confocal Microscopy System (FOCSM),the axial response function was set up and the Various Effects on Axial Resolution were analyzed.For the axial-resolution improvement,the experiment result indicates that parameter A related to fiber profile spot should be less than 3,and make the numerical aperture of t...

关 键 词：光纤共焦 系统参数 轴向分辨率 

分 类 号：TN16[电子电信—物理电子学]