Plasmon-polaritons on graphene-metal surface and their use in biosensors

Date
2012
Authors
Salihoglu, O.
Balci, S.
Kocabas, C.
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Source Title
Applied Physics Letters
Print ISSN
0003-6951
Electronic ISSN
1077-3118
Publisher
A I P Publishing LLC
Volume
100
Issue
21
Pages
213110-1 - 213110-5
Language
English
Type
Article
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Abstract

We studied excitation of surface plasmon-polaritons on graphene-metal surface. The metal surface is functionalized by transfer printing of graphene grown by chemical vapor deposition on copper foils. Surface plasmon resonance characteristics of monolayer and multilayer graphene on the metal surface are presented. We were able to obtain the dispersion relation of graphene-metal surface which reveals the essential feature of the plasmon-polaritons. As an application, we fabricated a surface plasmon resonance sensor integrated with a microfluidic device to study nonspecific physical interaction between graphene layer and proteins. © 2012 American Institute of Physics.

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Published Version (Please cite this version)