基于表面等离子体激元耦合相位板超聚焦透镜结构的优化设计

被引:6
作者
张志友
杜惊雷
李敏
牛晓云
机构
[1] 四川大学物理科学与技术学院纳光子技术研究所
关键词
光学设计; 表面等离子体激元; 纳米聚焦; 超分辨; 长焦深;
D O I
暂无
中图分类号
O435 [几何光学];
学科分类号
070207 ; 0803 ;
摘要
基于银板超透镜和多带相位二元光学衍射理论,提出一种超聚焦透镜结构。利用时域有限差分和标量衍射理论数值分析显示,这种超透镜在可见光范围,具有单一焦点,焦斑尺寸约0.36 λ,聚焦位置和焦深可达10 λ以上,在近场光学扫描显微镜和超分辨成像及光刻等系统中有潜在应用前景。
引用
收藏
页码:2524 / 2528
页数:5
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