Design of infrared optical absorber using silver nanorings array made by a top-down process.
Design of infrared optical absorber using silver nanorings array made by a top-down process.
复制标题
DOI：
10.1038/s41598-023-34579-w
复制
发表时间：
2023-05-12
影响因子：
4.6
通讯作者：
中科院分区：
文献类型：
--
作者：
This paper presents the numerical simulation and fabrication of a metasurface composed of silver nanorings with a split-ring gap. These nanostructures can exhibit optically-induced magnetic responses with unique possibilities to control absorption at optical frequencies. The absorption coefficient of the silver nanoring was optimized by performing a parametric study with Finite Difference Time Domain (FDTD) simulations. The absorption and scattering cross sections of the nanostructures are numerically calculated to assess the impact of the inner and outer radii, the thickness and the split-ring gap of one nanoring, as well as the periodicity factor for a group of four nanorings. This showed full control on resonance peaks and absorption enhancement in the near infrared spectral range. The experimental fabrication of this metasurface made of an array of silver nanorings is achieved by e-beam lithography and metallization. Optical characterizations are then carried out and compared to the numerical simulations. In contrast to usual microwave split-ring resonator metasurfaces reported in literature, the present study shows both the realization by a top-down process and modelling performed in the infrared frequency range.
登录
查看更多内容
影响因子：
4
作者：
Clark, A. W.;Glidle, A.;Cooper, J. M.
通讯作者：
Cooper, J. M.
影响因子：
2.3
作者：
Broers, AN;Hoole, ACF;Ryan, JM
通讯作者：
Ryan, JM
影响因子：
2.4
作者：
Ishikawa, A;Tanaka, T
通讯作者：
Tanaka, T
影响因子：
3.8
作者：
Chen, Che Chin;Hsiao, Chih Ting;Tsai, Din Ping
通讯作者：
Tsai, Din Ping
影响因子：
29.4
作者：
Capitaine, Anna;Sciacca, Beniamino
通讯作者：
Sciacca, Beniamino