Abstract
This paper presents a new, to the best of our knowledge, technique to control the flow of electron packets employing a switchable digital metasurface in the terahertz region. The proposed structure can act as a device that converts an electromagnetic (EM) wave into electron packets that can be represented in the form of digital bit sequences at the output. The top layer of the structure controls the intensity of the electron packets while the bottom layer involves the spatial distribution of the information with the help of electrical switching. The electrical switching is achieved with the application of suitable biasing across a vanadium dioxide (${{\rm{VO}}_2}$) patch. This approach to the distribution of information helps feed the circuitry of an electronic system, as per the requirement using electrical tuning, which is not possible in a conventional antenna system.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
S. Hadi Badri, Sanam SaeidNahaei, and Jong Su Kim
Appl. Opt. 61(20) 5972-5979 (2022)
Shilei Liu, Chunmei Ouyang, Zhibo Yao, Jing Zhao, Yanfeng Li, Longcheng Feng, Caihong Zhang, Biaobing Jin, Jiajun Ma, Hongyi Li, Yi Liu, Quan Xu, Jiaguang Han, and Weili Zhang
Opt. Express 30(15) 28158-28169 (2022)
Wei-Mang Pan, Jiu-Sheng Li, and Chen Zhou
Opt. Mater. Express 11(4) 1070-1079 (2021)