Title :
Study of enhanced biosensors based on 2-D sandwiched plasmon photonic crystals
Author :
Zhang, J.Y. ; Huang, H. ; Ji, X.M. ; Zhou, J. ; Huang, Y.P. ; Xu, W.J. ; Carlier, J. ; Nongaillard, B.
Author_Institution :
Dept. of Microelectron., Fudan Univ., Shanghai, China
Abstract :
A novel sandwich structure of photonic crystal with periodic square array of hexagon holes was fabricated. The infrared optical properties in reflectance of the devices were tested. A sharp peak of surface plasmon resonance was observed at the incident angles of 30°. By the comparison of the results between non-sandwich structure and sandwich structure, the latter has higher sensitivity. This relative sensitivity of the optical biosensor has been enhanced by almost 300%.
Keywords :
biosensors; optical sensors; photonic crystals; reflectivity; surface plasmon resonance; 2-D sandwiched plasmon photonic crystals; infrared optical properties; optical biosensor; reflectance; surface plasmon resonance; Biosensors; Films; Optical surface waves; Photonic crystals; Plasmons; Sandwich structures; Surface waves;
Conference_Titel :
Sensors, 2011 IEEE
Conference_Location :
Limerick
Print_ISBN :
978-1-4244-9290-9
DOI :
10.1109/ICSENS.2011.6126900
