自聚焦透镜的傅里叶变换性质及成像性质  

Imaging and Fourier Transform Properties of GRIN-rod Lens

作　　者：郎贤礼[1] 刘德森[1] 朱少丽[1] 吕涛[1] 

机构地区：[1]西南师范大学物理学院,重庆400715

出　　处：《光子学报》2005年第7期988-992,共5页Acta Photonica Sinica

基　　金：重庆市科委(413223);重庆市计委(413227)资助项目

摘　　要：对自聚焦透镜的二维傅里叶变换性质,成像性质以及脉冲响应作了系统论述.并从理论上对自行研制的自聚焦透镜的光斑尺寸进行了计算.在不考虑像差的情况下,直径为1.8mm的透镜其出射光斑直径为1.2μm,利用狭缝扫描法进行了实际测量,测量值为1.5μm,理论值与实验值基本吻合,从而说明理论分析的合理性.Imaging and Fourier Transforming properties of GRIN-rod Lens are discussed firstly. Then the optical spot of GRIN-rod lens is calculated in theory. Taking no account of aberrations, the optical spot size of the lens whose diameter is 1.80 mm is 1.2 μm. Compare the measurement value which is 1.5 μm with the theoretical one, they are almost identical with each others. It also proves the theoretical analysis is reasoned.

关 键 词：自聚焦透镜 傅里叶变换 脉冲响应 光斑 

分 类 号：TN253[电子电信—物理电子学]