Engineering of composite metallic microfibers towards development of plasmonic devices for sensing applications

The paper discusses the analysis of tapered hybrid composite microfibers based on a metal-core and dielectric-cladding composite material system. Its advantages over the pure metal tips conventionally used, are the inherent enhanced environmental robustness due to inert borosilicate cladding and the...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2016-03, Vol.108 (1), p.12027-12030
Main Authors: Petropoulou, A, Antonopoulos, G, Bastock, P, Craig, C, Kakarantzas, G, Hewak, D W, Zervas, M N, Riziotis, C
Format: Article
Language:English
Subjects:
Borosilicate
Clad metals
Cladding
Composite materials
Computer simulation
Detection
Devices
Finite element method
Hybrid composites
Microfibers
Nanowires
Plasmonics
Tapering
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Summary:The paper discusses the analysis of tapered hybrid composite microfibers based on a metal-core and dielectric-cladding composite material system. Its advantages over the pure metal tips conventionally used, are the inherent enhanced environmental robustness due to inert borosilicate cladding and the capability of multiple excitation of the tapered nanowire through the length of the fiber due to the enabled total internal reflection at the borosilicate air interface. Simulations through finite element method (FEM) have demonstrated an improved field enhancement at the tapered region of such microfibers. Furthermore, experimental results on tapering in copper based microfibers together with light coupling and propagation studies will be demonstrated revealing the potential for the development of plasmonic devices for sensing applications.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/108/1/012027