This work was supported by the National Natural Science Foundation of China (grant no. 11174119) and the Scientific Research Fund of Provincial Education Department of Hunan ( grant no. 16C1375).
机构署名:
本校为第一且通讯机构
院系归属:
机械工程学院
电气工程学院
摘要:
We studied numerically the enhanced optical transmission (EOT) through periodic subwavelength circular-sharp hole arrays in metallic films with different edge sharp distribution features of unit structures. Detailed studies indicate that the unit structure edge sharp distribution features strongly influence the surface plasmons (SPs). These results demonstrate that the number of edge sharp activated the localized surface plamons (LSP) resonance on the unit structure is changed by rotating the polarization of the incident light, leading to chang...