Enhancing light-matter interaction via Bloch surface waves for biosensing applications

Author

Liscidini, M. ; Galli, M. ; Patrini, M. ; Dacarro, G. ; Andreani, L.C. ; Bajoni, D. ; Ricciardi, C. ; Giorgis, F. ; Loo, R.W. ; Goh, M.C. ; Shi, M. ; Sipe, J.E.

Author_Institution

Dept. of Phys. A. Volta, Univ. of Pavia, Pavia, Italy

fYear

2009

fDate

June 28 2009-July 2 2009

Firstpage

1

Lastpage

4

Abstract

We present two different configurations for the detection of Bloch surface waves in silicon nitride multilayers: attenuated total reflectance and photoluminescence measurements. In the first case, we measured a 50-fold enhancement of the diffraction signal by a protein grating printed on the multilayer when the incident light beam is coupled to the surface waves. In the second case, we observe a significant modification of the spontaneous emission by a monolayer of rhodamine molecules bonded to the photonic crystal surface. These results may found application in the field of optical sensors and biosensors.

Keywords

attenuated total reflection; multilayers; organic compounds; photoluminescence; photonic crystals; silicon compounds; spontaneous emission; Bloch surface waves; SiN₃; attenuated total reflectance; photoluminescence; photonic crystal surface; spontaneous emission; Attenuation measurement; Biosensors; Diffraction; Nonhomogeneous media; Optical surface waves; Photoluminescence; Proteins; Reflectivity; Silicon; Surface waves; biosensing; diffraction grating; emission; photonic crystals; sensing; surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks, 2009. ICTON '09. 11th International Conference on

Conference_Location

Azores

Print_ISBN

978-1-4244-4825-8

Electronic_ISBN

978-1-4244-4827-2

Type

conf

DOI

10.1109/ICTON.2009.5185336

Filename

5185336