Active Multiple Plasmon-Induced Transparency with Graphene Sheets Resonators in Mid-Infrared Frequencies

Figure 1

Schematic of plasmonic structure consists of two graphene ribbon and two graphene sheets. (a) Three-dimensional schematic of the plasmonic device. (b) Side view of the device configuration.  nm is the length of two graphene sheets;  nm is the coupling distance between graphene waveguide and two graphene sheets;  nm is the separation between two graphene sheets; , , and , respectively, represent the gate voltages on graphene waveguide and two graphene sheets.

(a)

(b)