The field enhancement and optical sensing in the surface photonic chrystal

Author

Andrey V. Ivanov;Irina A. Boginskaya;Alexander V. Vaskin;Konstantin N. Afanas´ev;Ilya A. Ryzhikov;Andrey N. Lagarkov;Andrey K. Sarychev;Ilya N. Kurochkin;Igor A. Budashov

Author_Institution

Institute for Theoretical and Applied Electrodynamics of Russian Academy of Sciences, Russia

fYear

2015

fDate

5/1/2015 12:00:00 AM

Firstpage

1

Lastpage

4

Abstract

New dielectric metamaterial based on the Bragg filter comprising ten dielectric bilayers was investigated. Each bilayer is the thin films of silicone dioxide (SiO₂) and another film of zirconium dioxide (ZrO₂). The surface of the multilayer film is profiled. It has a form of periodic system of rectangles separated by the open gaps. We use the computer simulation as well as analytical solution to find the reflectance of the multilayer as a function of the wavelength and electromagnetic (em) field distribution. The multilayer system reveals the enhancement of em fields at the surface. The considered Bragg filter was modified by Raman-active structure made of gold nanoparticles with chemically attached 3,3´-thio-bis (6-nitrobenzoic acid) - (TNB). The high Surface Enhanced Raman Scattering (SERS) signal was detected.

Keywords

"Optical surface waves","Nonhomogeneous media","Dielectrics","Surface waves","Optical sensors","Surface morphology","Optical diffraction"

Publisher

ieee

Conference_Titel

Days on Diffraction (DD), 2015

Print_ISBN

978-1-4673-8635-7

Type

conf

DOI

10.1109/DD.2015.7354849

Filename

7354849