Published January 1, 2016
| Version v1
Journal article
Open
Dynamic tuning of plasmon resonance in the visible using graphene
- 1. Univ Turkish Aeronaut Assoc, Dept Astronaut Engn, TR-06790 Ankara, Turkey
- 2. Bilkent Univ, Dept Phys, TR-06800 Ankara, Turkey
Description
We report active electrical tuning of plasmon resonance of silver nanoprisms (Ag NPs) in the visible spectrum. Ag NPs are placed in close proximity to graphene which leads to additional tunable loss for the plasmon resonance. The ionic gating of graphene modifies its Fermi level from 0.2 to 1 eV, which then affects the absorption of graphene due to Pauli blocking. Plasmon resonance frequency and linewidth of Ag NPs can be reversibly shifted by 20 and 35 meV, respectively. The coupled graphene-Ag NPs system can be classically described by a damped harmonic oscillator model. Atomic layer deposition allows for controlling the graphene-Ag NP separation with atomic-level precision to optimize coupling between them. (C) 2016 Optical Society of America
Files
bib-48320630-27a2-4f80-906a-8bc54acda94e.txt
Files
(166 Bytes)
| Name | Size | Download all |
|---|---|---|
|
md5:54399fed6d4aac2fa9356620523fef7a
|
166 Bytes | Preview Download |