High-transmission hybrid-effect-assisted nanoaperture.
We present a C-aperture encircled by a groove that makes possible the hybrid effect of coupling surface plasmon resonance to propagating waves. Compared to a single C aperture, the groove-encircled aperture can increase transmission by a factor of 2.45 in the near field and by a factor of 1.88 in the far field, showing good agreement with our theoretical calculation.
Chen
Yu-Chieh
YC
Department of Photonics and Institute of Electro-optical Engineering, National Chiao Tung University, Hsinchu, 30010, Taiwan. ycchen.eo92g@nctu.edu.tw
Fang
Jen-Yu
JY
Tien
Chung-Hao
CH
Shieh
Han-Ping D
HP