[IEEE 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting - Atlanta, GA, USA (2019.7.7-2019.7.12)] 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting - Ultra-Deep Sub-Wavelength Mode Confinement in Graphene Waveguides

摘要： In this paper, a nano-structured device is designed using two adjacent graphene-based waveguides which is capable of con?ning an incident light-wave at the deep nano-scale. The Fermi energy of graphene in both waveguides are tuned by electrostatic gating, providing an active control on the working frequency of the device.