Bragg surface wave device based on porous silicon and its application for sensing

Bragg surface wave device based on porous silicon and its application for sensing

Results concerning a Bragg surface wave device based on porous silicon and intended for sensing application are reported. Existence of optical surface waves on Bragg structures is experimentally shown. Such device is expected to be very sensitive to the grafting of biological molecules. The authors...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics letters Vol. 90; no. 24
Main Authors: Guillermain, E., Lysenko, V., Orobtchouk, R., Benyattou, T., Roux, S., Pillonnet, A., Perriat, P.
Format: Journal Article
Language:English
Published: American Institute of Physics 11-06-2007
Subjects:
Engineering Sciences
Materials
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Results concerning a Bragg surface wave device based on porous silicon and intended for sensing application are reported. Existence of optical surface waves on Bragg structures is experimentally shown. Such device is expected to be very sensitive to the grafting of biological molecules. The authors demonstrate this sensing effect by grafting of amine chemical groups. The optical characterization using m-line spectroscopy shows that the increase of the coupling angle is about 20° after the amine grafting. The authors show that porosity is essential for reaching this high sensitivity.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2747671