论文标题
基于VO2的THZ MetaSurface的电降低的光学开关阈值
Electrically reduced optical switching threshold of VO2-based THz metasurface
论文作者
论文摘要
由于供应亚阈值电流，基于VO2的THZ元面光学开关阈值降低了五个以上的数量级至0.32-0.4 w/cm2。此外，由于等离子效应，Au纳米颗粒的额外沉积可以进一步将阈值降低30％。提出的设计和通过电流和光控制子THZ/THZ传输控制的组合方法使得在设计基于Metasurfaces的动态可编程THZ镜像阵列时可以克服现有的瓶颈。
The VO2-based THz metasurface optical switching threshold is reduced by more than five orders of magnitude to 0.32-0.4 W/cm2 due to the supply of a subthreshold electric current. Moreover, additional deposition of Au nanoparticles can further reduce the threshold by 30% due to plasmonic effects. The proposed designs and a combined approach to controlling the sub-THz/THz transmission by electric current and light make it possible to overcome the existing bottleneck in design of dynamically programmable THz mirror array based on metasurfaces.
