Title :
Analysis of Racetrack Resonators in Surface Sensing Applications
Author :
Kargar, Alireza ; Lee, Chengkuo
Author_Institution :
Dept. of Electr. Eng., Shiraz Univ., Shiraz
Abstract :
In this paper, racetrack resonator in surface sensing is presented. The racetrack resonator in surface sensing is investigated and the sensing parameters including sensitivity and quality factor are analytically derived in both scheme: the resonant wavelength shift and intensity variation. It is shown there is a maximum phase shift at which the maximum device sensitivity can be obtained. Moreover, it is demonstrated in the intensity detection there are optimal values of self coupling coefficient t and attenuation factor tau at which the maximum device sensitivity can be maximized. In addition the variations of maximum phase shift and quality factor versus t and tau are shown.
Keywords :
Q-factor; biosensors; micro-optomechanical devices; microcavities; micromechanical resonators; microsensors; molecular biophysics; optical resonators; optical sensors; biomolecule detection; intensity variation scheme; microring resonator; quality factor; racetrack resonator; resonant wavelength shift; self coupling coefficient; sensitivity analysis; surface sensing; Attenuation; Microcavities; Optical attenuators; Optical filters; Optical resonators; Optical sensors; Optical surface waves; Optical waveguides; Q factor; Resonance; Maximum sensitivity; microring resonator; quality factor; racetrack microcavity resonator;
Conference_Titel :
PhotonicsGlobal@Singapore, 2008. IPGC 2008. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3901-0
Electronic_ISBN :
978-1-4244-2906-6
DOI :
10.1109/IPGC.2008.4781392
