NDLI: A gating tunable planar lens based on graphene

Content Provider	Springer Nature Link
Author	Zhuang, Hua Wei Kong, Fan Min Li, Kang Yue, Qing Yang
Copyright Year	2014
Abstract	Graphene is regarded as the ideal platform for propagating a surface plasmon polariton wave in THz and infrared frequency bands. We proposed a graphene-based planar lens with variable focal length. The proposed lens structure is composed of a single flake of graphene, a set of polysilicon DC gating pads, and a dielectric layer grown over a silicon substrate. The designed lens is realized by applying a gating voltage between the polysilicon DC gating pads and silicon substrate. By dynamically controlling the gating voltage, the lens is capable of focusing and collimating a surface plasmon polariton wave according to different focal lengths, such as 150, 200, 250, and 300 nm. The performance of the proposed lens is evaluated versus different focal lengths and chemical potentials. The correlation filtering system can be simulated by the lenses with different focal lengths. Numerical simulations demonstrated that the results were nearly consistent with our design methodology. The designed planar lens can be used as Micro-Optics elements and opens a new way to achieve plasmonic optics devices.
Starting Page	1139
Ending Page	1150
Page Count	12
File Format	PDF
ISSN	03068919
Journal	Optical and Quantum Electronics
Volume Number	47
Issue Number	5
e-ISSN	1572817X
Language	English
Publisher	Springer US
Publisher Date	2014-07-16
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Graphene Surface plasmon polariton Conductivity Planar lens Optics, Optoelectronics, Plasmonics and Optical Devices Electrical Engineering Characterization and Evaluation of Materials Computer Communication Networks
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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