Dynamic tuning of plasmon resonance in the visible using graphene

Sinan Balci; Osman Balci; Nurbek Kakenov; Fatih Bilge Atar; Coskun Kocabas

doi:10.1364/OL.41.001241

Dynamic tuning of plasmon resonance in the visible using graphene

Sinan Balci
, Osman Balci
, Nurbek Kakenov
, Fatih Bilge Atar
, Coskun Kocabas

Turk Hava Kurumu Universitesi
Bilkent University

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	1241-1244
Number of pages	4
Journal	Optics Letters
Volume	41
Issue number	6
DOIs	https://doi.org/10.1364/OL.41.001241
Publication status	Published - 15 Mar 2016
Externally published	Yes

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title = "Dynamic tuning of plasmon resonance in the visible using graphene",

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.",

author = "Sinan Balci and Osman Balci and Nurbek Kakenov and Atar, \{Fatih Bilge\} and Coskun Kocabas",

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doi = "10.1364/OL.41.001241",

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AU - Balci, Sinan

AU - Balci, Osman

AU - Kakenov, Nurbek

AU - Atar, Fatih Bilge

AU - Kocabas, Coskun

PY - 2016/3/15

Y1 - 2016/3/15

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/84962307261

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EP - 1244

JO - Optics Letters

JF - Optics Letters

IS - 6

ER -

Dynamic tuning of plasmon resonance in the visible using graphene

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