پديدآورندگان :
Zangeneh-Nejad Farzad khavasi@sharif.edu Electrical Engineering Department, Sharif University of Technology, Tehran, Iran, 11155-4363 , AbdollahRamezani Sajjad khavasi@sharif.edu Electrical Engineering Department, Sharif University of Technology, Tehran, Iran, 11155-4363 , Arik Kamalodin khavasi@sharif.edu Electrical Engineering Department, Sharif University of Technology, Tehran, Iran, 11155-4363 , Khavasi Amin khavasi@sharif.edu Electrical Engineering Department, Sharif University of Technology, Tehran, Iran, 11155-4363
كليدواژه :
Graphene , Metasurfaces , Reflect array , Beam manipulating , Lenses
چكيده فارسي :
A highly efficient two-dimensional meta-reflectarray manipulating the phase and amplitude of far-infrared electromagnetic wave is proposed. The reflect array consists of patterned graphene nano-disks resides on a subwavelenght thick optical cavity to enhance the interaction of electromagnetic wave. It is shown that the reflected wave from each unit cell can almost cover the 2𝜋 range phase shift by changing the radius of the graphene nano-disks while at the same time maximizes its amplitude. Proposing a transmission line model for the proposed structure, we realize a meta lens as a flat optics functionality.
