Analysis of Racetrack Resonators in Surface Sensing Applications

Author

Kargar, Alireza ; Lee, Chengkuo

Author_Institution

Dept. of Electr. Eng., Shiraz Univ., Shiraz

fYear

2008

fDate

8-11 Dec. 2008

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IPGC.2008.4781392

Filename

4781392