Title :
Experimental detection of 1pico-molar concentration from high-Q photonic crystal microcavity biosensors
Author :
Zou, Yi ; Chakravarty, Swapnajit ; Lai, Wei-Cheng ; Chen, Ray T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX, USA
Abstract :
We experimentally demonstrate a photonic crystal microcavity biosensor with 1pM sensitivity. Radiation loss engineering for high Q and increased mode overlap with analyte are combined to achieve the highest sensitivity in silicon-on-insulator platform.
Keywords :
Q-factor; biosensors; integrated optics; optical waveguides; photonic crystals; high-Q photonic crystal microcavity biosensors; mode overlap; radiation loss engineering; silicon-on-insulator platform; Biosensors; Cavity resonators; Microcavities; Optical sensors; Optical waveguides; Sensitivity; Biosensor; Chemical Sensing; Photonic Crystal Microcavity; Photonic Crystal Waveguide;
Conference_Titel :
Photonics Conference (IPC), 2012 IEEE
Conference_Location :
Burlingame, CA
Print_ISBN :
978-1-4577-0731-5
DOI :
10.1109/IPCon.2012.6358533
