Association Mission
The mission of the association is to advance the creation, communication and application of knowledge to benefit society and improve people's lives.
Legal Members
Membership
Contact Us
year 27, Issue 1 (Iranian Nano-Photonic Conference 2020 2020)
ICOP & ICPET _ INPC _ ICOFS 2020, 27(1): 55-57 |
Back to browse issues page
Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:
Malekpour M, Granpayeh N. Graphene-lens with tunable focal length in the terahertz band. ICOP & ICPET _ INPC _ ICOFS 2020; 27 (1) :55-57
URL: http://opsi.ir/article-1-2287-en.html
URL: http://opsi.ir/article-1-2287-en.html
1- Faculty of Electrical Engineering, K. N. Toosi University of Technology, Tehran, Iran
Abstract: (993 Views)
In this research, we propose a structure for focusing light in the terahertz wavelength range, where the focal length can be controlled. The structure was analyzed by using the finite-difference time-domain method. Plasmonic lenses have about wavelength or sub wavelength dimensions, which their sizes are much smaller than the dielectric ones. By placing a graphene layer in the structure and applying a voltage to it, the graphene Fermi level changes and the focal length of the beam varies up to 13.95λ; so we can electrically adjust the focal length of the flat lens.
| Rights and permissions | |
 |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
