Optical resonant sensors: a method to reduce the effect of thermal drift
Applied Optics, Vol. 48, Issue 3, pp. 458-463 (2009)
http://dx.doi.org/10.1364/AO.48.000458
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Abstract
The use of a whispering gallery mode (WGM) resonator with an ultrahigh quality factor Q is promising in highly sensitive, label-free, lab-on-a-chip sensor applications. We investigated a novel method of using the differential frequency of TE and TM modes to reduce the thermal noise baseline, which commonly limits the sensitivity of WGM sensors. We studied the temperature dependence of WGM based sensors and experimentally demonstrated the reduction of temperature fluctuation and thus a significant improvement in the practical sensor detection limit.
© 2009 Optical Society of America
OCIS Codes
(120.6810) Instrumentation, measurement, and metrology : Thermal effects
(140.4780) Lasers and laser optics : Optical resonators
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(230.5750) Optical devices : Resonators
ToC Category:
Instrumentation, Measurement, and Metrology
History
Original Manuscript: July 1, 2008
Revised Manuscript: November 25, 2008
Manuscript Accepted: December 19, 2008
Published: January 12, 2009
Virtual Issues
Vol. 4, Iss. 3 Virtual Journal for Biomedical Optics
Citation
Thanh Le, Anatoliy Savchenkov, Nan Yu, Lute Maleki, and W. H. Steier, "Optical resonant sensors: a method to reduce the effect of thermal drift," Appl. Opt. 48, 458-463 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-3-458
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