Title :
Vertically Coupled Polymer Microracetrack Resonators for Label-Free Biochemical Sensors
Author :
Delezoide, Camille ; Salsac, Marion ; Lautru, Joseph ; Leh, Hervé ; Nogues, Claude ; Zyss, Joseph ; Buckle, Malcolm ; Ledoux-Rak, Isabelle ; Nguyen, Chi Thanh
Author_Institution :
Lab. de Photonique Quantique et Mol., ENS Cachan, Cachan, France
Abstract :
We report on the efficient design and fabrication of polymeric microracetrack optical resonators for label-free biosensing purposes. Vertically-coupled microresonators immersed in deionised water display high Q-factors (>;35000)and finesses up to 25. A surface sensing experiment performed with these microresonators using 5-TAMRA cadaverine as a test molecule demonstrated both the high sensitivity and low detection limit of our device.
Keywords :
bioMEMS; biosensors; chemical sensors; micro-optics; microcavities; optical polymers; optical resonators; optical sensors; spectrochemical analysis; 5-TAMRA cadaverine; Q-factor; deionised water; label free biochemical sensors; label free biosensing; optical resonator fabrication; polymeric microracetrack optical resonators; surface sensing experiment; vertically coupled polymer microracetrack resonators; Couplings; Optical resonators; Optical surface waves; Optical waveguides; Polymers; Sensitivity; Sensors; Label-free biosensors; polymer microresonators;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2177518
