Enhanced and Controllable Multilayer SERS Substrate with Composite Layer

DOI

10.2991/mcei-16.2016.10How to use a DOI?

Keywords

Composites layer; SERS substrate; Local plasmon resonant; Controllable

Abstract

We numerically investigate the optical properties of the multilayer SERS structures. It includes the substrate layer, the adhesion layer and the composite layer which is consisting of the metallic nanoparticles embedding in the host metallic or dielectric layer. Under the quasi-static approximation, the effective dielectric constant of the composite layer is explored. Its enhanced electric field and the wave prorogating properties are fully explored with the aid of the Fresnel's equations. Our numerical results illustrate that the volume fraction of the metallic nanoparticles and the dielectric properties of the host medium can greatly affect the optical propagating properties (absorbance and the reflectance). Moreover, enhanced local electromagnetic field can be obtained with the metallic (gold) host medium other than the dielectric (TiO2). Thus, our multilayer SERS substrate with excellent controllable enhanced local electric filed endorsed us another degree to engineer the optical transmission. It is a promising candidate in the SERS biosensors applications

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chunzhen Fan
PY  - 2016/12
DA  - 2016/12
TI  - Enhanced and Controllable Multilayer SERS Substrate with Composite Layer
BT  - Proceedings of the 2016 6th International Conference on Mechatronics, Computer and Education Informationization (MCEI 2016)
PB  - Atlantis Press
SP  - 47
EP  - 51
SN  - 1951-6851
UR  - https://doi.org/10.2991/mcei-16.2016.10
DO  - 10.2991/mcei-16.2016.10
ID  - Fan2016/12
ER  -