Dynamic tuning of plasmon resonance in the visible using graphene
Date
2016Source Title
Optics Letters
Print ISSN
0146-9592
Electronic ISSN
1539-4794
Publisher
The Optical Society
Volume
41
Issue
6
Pages
1241 - 1244
Language
English
Type
ArticleItem Usage Stats
199
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339
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Abstract
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.
Keywords
Atomic layer depositionOscillators (electronic)
Oscillators (mechanical)
Plasmons
Resonance
Silver
Surface plasmon resonance
Tuning
Close proximity
Damped harmonic-oscillator models
Dynamic tuning
Electrical tuning
Plasmon resonance frequencies
Plasmon resonances
Silver nanoprisms
Visible spectra
Graphene
Graphite
Metal nanoparticle
Silver
Chemistry
Energy transfer
Light related phenomena
Procedures
Surface plasmon resonance
Energy Transfer
Graphite
Metal Nanoparticles
Optical Phenomena
Silver
Surface Plasmon Resonance
Permalink
http://hdl.handle.net/11693/36853Published Version (Please cite this version)
http://dx.doi.org/10.1364/OL.41.001241Collections
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