Title :
Active biosensors with dyed-doped microcavities
Author :
Yang, Jun ; Guo, L. Jay
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
In this paper we propose an active biosensor based on dye-doped polymer microcavities. We carried out detailed analysis to show its improved sensitivity. Compared with passive high-Q microcavities, such active sensor can provide 105 fold narrower resonance linewidth in the transmission spectrum at the lasing condition. By detecting the resonance shift due to the presence of analytes in the surrounding solution, such compact active sensors can detect the refractive index change better than 10-9 in biomedical solutions.
Keywords :
biosensors; microcavities; optical sensors; polymers; refractive index; sensitivity analysis; active biosensors; biomedical solutions; dyed-doped microcavities; improved sensitivity; narrower resonance linewidth; polymer microcavities; refractive index change; resonance shift; Biomedical optical imaging; Biosensors; Microcavities; Optical refraction; Optical sensors; Optical surface waves; Optical waveguides; Propagation losses; Refractive index; Resonance;
Conference_Titel :
Sensors, 2003. Proceedings of IEEE
Print_ISBN :
0-7803-8133-5
DOI :
10.1109/ICSENS.2003.1279028
