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概括介绍了亚波长金属光阑的超常透射现象及其相关的物理机制,重点介绍关于表面等离体子在超常透射中所扮演的角色的国际辩论,并对其进行了一些展望。
The phenomenon of suboptimal transmission of subwavelength metal diaphragm and its related physical mechanism are summarized. The international debate on the role of surface plasmons in super-transmission is emphatically introduced and some perspectives are given.