二次离子交换法改进自聚焦透镜折射率分布  

Improvement of Index Distributions for GRIN Lens by Two-step Ion-exchanging Method

作　　者：郎贤礼[1] 刘德森[1] 吕涛[1] 蒋小平[1] 朱少丽[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8期1141-1144,共4页Acta Photonica Sinica

基　　金：重庆市科委(413223);重庆市计委(413227)资助项目

摘　　要：对二次离子交换制作自聚焦透镜的理论和工艺进行了研究.利用KNO3和NaNO3混合盐进行二次离子交换.对二次离子交换前后的自聚焦透镜的折射率分布和畸变进行了测试,结果表明,经过二次离子交换后,折射率分布明显改善,更接近理想折射率分布曲线,相对畸变由二次交换前的13.1%减小到7.7%.The two-step ion-exchanging method for fabrication of GRIN lens is proposed. The mixed salts of KNO3 and NaNO3 are used in the process of two-step ion-exchanging, and the result is satisfactory. The index distributions and aberrations are also measured. As a result, the index distributions are amended greatly and they are much more close to the ideal index distributions and the aberrations are decreased from 13.1% to 7.7%.

关 键 词：自聚焦透镜 二次离子交换 折射率分布 畸变 薄片干涉法 

分 类 号：O435.1[机械工程—光学工程]