Broadband Extraordinary Optical Transmission Through Gold Diamond-Shaped Nanohole Arrays

被引：35
|
作者：
Wang, Yong-Kai [1 ]
Qin, Yan [2 ]
Zhang, Zhong-Yue [2 ]
机构：
[1] Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710062, Peoples R China
[2] Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2014年 / 6卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Extraordinary optical transmission; morphology dependent resonances; diamond-shaped nanohole arrays; SUBWAVELENGTH HOLE ARRAYS; SURFACE-PLASMON POLARITONS; MODES; RESONANCE; METALS; NOBLE; FILMS; LIGHT;
D O I：
10.1109/JPHOT.2014.2343153
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Extraordinary optical transmission (EOT) is widely accepted as a resonant phenomenon. However, the nonresonant EOT phenomenon of subwavelength metallic nanohole arrays on a metallic thin film is significant for harvesting of broadband light, confining optical power in small area, and enhancing local electric field. To achieve nonresonant EOT, a novel paradigm structure comprising periodic diamond-shaped nanohole arrays engraved on a thin gold film is proposed. The transmission properties of the diamond-shaped nanohole arrays are calculated using the finite-element method. Results show that this paradigm structure facilitates a broadband and enhanced transmission in the infrared region. In addition, the effects of incident polarization and structural parameters on the transmission property are also studied.
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收藏
页数：8
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