Abstract
An anisotropic plasmonic surface of nanoellipsoid arrays is successfully fabricated on an Au film using slit-shaping-based femtosecond laser nanoprinting. The size and orientation of the nanoellipsoid can be exquisitely and flexibly controlled by adjusting the width and direction of the slit and the laser pulse energy. By dark-field optical micro-spectroscopy, anisotropic plasmonic color rendering as well as resonant light scattering from the lateral and vertical modes are experimentally and theoretically investigated in the visible spectral range. In addition, prospective use in the fields of steganographic encryption and multidimensional optical multiplexing is also proposed.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Qi Dai, Guodong Zhu, Weiguo Zhang, Jiaxin Li, Zile Li, Hao Cui, Kai Wei, Zhixue He, Zhiqiang Guan, and Guoxing Zheng
Opt. Express 30(19) 33574-33587 (2022)
Zile Li, Qi Dai, Liangui Deng, Guoxing Zheng, and Gongfa Li
Opt. Lett. 46(3) 480-483 (2021)
Huachao Cheng, Sheng Liu, Peng Li, Feng Liu, Xuetao Gan, Xuyue Guo, Shuxia Qi, Jinzhan Zhong, and Jianlin Zhao
Opt. Lett. 47(9) 2290-2293 (2022)