Fourier Optics on Graphene
نویسندگان
چکیده
Using numerical simulations, here, we demonstrate that a single sheet of graphene with properly designed inhomogeneous, nonuniform conductivity distributions can act as a convex lens for focusing and collimating the transverse-magnetic (TM) surface plasmon polariton (SPP) surface waves propagating along the graphene. Consequently, we show that the graphene can act as a platform for obtaining spatial Fourier transform of infrared (IR) SPP signals. This may lead to rebirth of the field of Fourier optics on a 1-atom-thick structure. Disciplines Engineering | Physics Comments Vakil, A. and Engheta, N. (2012). Fourier Optics on Graphene. Physical Review B, 85(7), 075434. doi: 10.1103/PhysRevB.85.075434 ©2012 American Physical Society This journal article is available at ScholarlyCommons: http://repository.upenn.edu/ese_papers/607 PHYSICAL REVIEW B 85, 075434 (2012) Fourier optics on graphene Ashkan Vakil and Nader Engheta* Department of Electrical & Systems Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA (Received 22 August 2011; published 27 February 2012) Using numerical simulations, here, we demonstrate that a single sheet of graphene with properly designed inhomogeneous, nonuniform conductivity distributions can act as a convex lens for focusing and collimating the transverse-magnetic (TM) surface plasmon polariton (SPP) surface waves propagating along the graphene. Consequently, we show that the graphene can act as a platform for obtaining spatial Fourier transform of infrared (IR) SPP signals. This may lead to rebirth of the field of Fourier optics on a 1-atom-thick structure. DOI: 10.1103/PhysRevB.85.075434 PACS number(s): 78.67.Wj, 42.30.Kq, 42.30.Va, 78.67.Pt
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