Abstract
Three-dimensional (3D) asymmetric plasmonic structures possessing asymmetric optical transmission properties have been widely studied. However, these structures have limitations for application due to fabrication techniques. Here, a quasi-3D asymmetric structure built up by a metallic rod-shaped particles layer and a metallic L-shaped holes layer was fabricated by the sputtering and the focused ion beam (FIB) milling. A broadband (1000–1600 nm) asymmetric transmission and optical rotation have been demonstrated experimentally. Numerical calculations show that the coupling between the cavity and particle plasmonic resonances contributes to this effect.
© 2014 Optical Society of America
Full Article | PDF ArticleMore Like This
Lei Wang, Suhua Jiang, Haifeng Hu, Haomin Song, Wei Zeng, and Qiaoqiang Gan
Opt. Lett. 39(2) 311-314 (2014)
Afsaneh Shahmansouri and Bizhan Rashidian
J. Opt. Soc. Am. B 31(11) 2838-2844 (2014)
Ping Wang, Qinghong Zheng, Qing Tang, Yintang Yang, Lixin Guo, Feng Huang, Zhenjie Song, and Zhiyong Zhang
Opt. Lett. 39(2) 375-378 (2014)