Song Ci, Wang Jicheng, Liu Dongdong, Hu Zheng-Da, Zhang Feng
Appl Opt. 2018 Nov 20;57(33):9770-9776. doi: 10.1364/AO.57.009770.
A wavelength-sensitive plasmonically induced transparency-like (PIT-like) device consisting of a double-layer graphene-based metal-dielectric-metal (MDM) waveguide is proposed. We initially investigate monolayer graphene sandwiched in the MDM waveguide and utilize the phase-matching equation to explain the reflected resonant wavelength of the transmission spectra. The PIT-like windows in the transmission spectra of double-layer graphene can be achieved by tuning the applied bias voltage on the graphene layer and the distance between the graphene layer and metal substrate. We can obtain the high-performance PIT-like devices with a flexible on-off-on effect. We use a finite element method to do all related simulations.
提出了一种由双层石墨烯基金属-介质-金属（MDM）波导构成的波长敏感型类等离子体诱导透明（PIT-like）器件。我们首先研究夹在MDM波导中的单层石墨烯，并利用相位匹配方程来解释透射光谱的反射共振波长。通过调节施加在石墨烯层上的偏置电压以及石墨烯层与金属衬底之间的距离，可以实现双层石墨烯透射光谱中的类PIT窗口。我们可以获得具有灵活的开-关-开效应的高性能类PIT器件。我们使用有限元方法进行所有相关模拟。
