Opto-Electronic Engineering, Volume. 45, Issue 11, 180207(2018)
Control of EOT of subwavelength metal bullseye structures by coaxial nano-columns
The bullseye structure is a classic nano-optical structure. This article designs a new bullseye structure with coaxial nano-pillars. We used the time-domain finite difference method (FDTD) to study the EOT of the structure. Studies show that the radius and height of the column have a significant impact on the transmission characteristics. The proper choice of the radius and height of the column will support the maximum transmission intensity. In addition, the bullseye structure has a higher sensitivity to the environmental refractive index. Theoretical analyses show that the enhancement transmission effect of the structure is caused by the interaction between the local surface plasmon and the surface plasmon polarization. This provides a new idea for the development and application of nano- photonic components.
Get Citation
Copy Citation Text
Yang Zehua, Song Yang, Chen Shuang, Gao Yachen. Control of EOT of subwavelength metal bullseye structures by coaxial nano-columns[J]. Opto-Electronic Engineering, 2018, 45(11): 180207
Category: Article
Received: Apr. 20, 2018
Accepted: --
Published Online: Dec. 16, 2018
The Author Email: Yang Zehua (20151045@s.hlju.edu.cn)