Title :
Plasmonic beam control in strongly coupled graphene sheet arrays
Author_Institution :
Wuhan National Laboratory for Optoelectronics and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, China
fDate :
7/1/2015 12:00:00 AM
Abstract :
We investigate the propagation of surface plasmon polaritons (SPPs) in the graphene sheet arrays (GSA) consisting of periodically stacking graphene sheets. Thanks to the strong coupling, SPPs experience a linear diffraction relation in the GSAs. The unique feature is helpful in restrain diffraction of SPPs during propagation. By connecting two GSAs with different periods, negative refraction of SPPs in the heterointerface may occur. In addition, we demonstrate accelerated and decelerated beams in aperiodic GSAs, resulting in the beam routing effect.
Keywords :
"Graphene","Diffraction","Plasmons","Routing","Particle beams","Optical surface waves","Couplings"
Conference_Titel :
Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), 2015 IEEE MTT-S International Microwave Workshop Series on
DOI :
10.1109/IMWS-AMP.2015.7324969
