变迹术对改善共焦系统分辨率的实验研究  

Improving Confocal Scanning Imaging System Resolution by Using Apodization

作　　者：步扬[1] 王桂英[1] 杨莉松[1] 王建岗[1] 徐至展[1] 

机构地区：[1]中国科学院上海光机所,上海201800

出　　处：《中国激光》2000年第10期906-910,共5页Chinese Journal of Lasers

基　　金：国家自然科学基金!No.697770 0 4和 !No.696370 30 资助课题

摘　　要：给出了在反射式光纤共焦扫描成像系统中 ,利用变迹术提高系统分辨率的原理 ,并做了相应的对比实验 .在加入变迹掩模后 ,系统对物体的成像响应曲线、物体直边边缘展宽量都有所改善 .实验数据证明 ,改变光瞳函数可以提高系统的横向分辨率 ,同时不降低系统的纵向分辨率 .In confocal scanning imaging system, using apodization can improve the system resolution. The paper presents the principles. The experiments are done in a reflection mode fiber confocal scanning microscopy with the mask, the intensity response curves in transverse and axial direction of this system are given. A sharp straight edge of a flat object is measured. The results demonstrate that an apodizated mask does not reduce the axial resolution while can improve the transverse resolution.

关 键 词：变迹术 光瞳函数 共焦系统 分辨率 实验 

分 类 号：TN24[电子电信—物理电子学]