中国物理B ›› 2006, Vol. 15 ›› Issue (7): 1591-1594.doi: 10.1088/1009-1963/15/7/036
杨海方1, 金爱子1, 孙梅2, 刘荣鹃2, 李志远2, 程丙英2, 张道中2
Sun Mei (孙梅)a, Liu Rong-Juan (刘荣鹃)a, Li Zhi-Yuan (李志远)a, Cheng Bing-Ying (程丙英)a, Zhang Dao-Zhong (张道中)a, Yang Hai-Fang (杨海方)b, Jin Ai-Zi (金爱子)b
摘要: The extraordinary light transmission through a 200-nm thick gold film when passing through different subwavelength hole arrays is observed experimentally. The sample is fabricated by electron beam lithography and reactive ion etching system. A comparison between light transmissions shows that the hole shape changing from rectangular to diamond strongly affects the transmission intensity although both structures possess the same lattice constant of 600,nm. Moreover, the position of the transmission maximum undergoes a spectral red-shift of about 63,nm. Numerical simulations by using a transfer matrix method reproduce the observed transmission spectrum quite well.
中图分类号: (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))