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Applied Optics

Applied Optics


  • Editor: Jospeh N. Mait
  • Vol. 48, Iss. 3 — Jan. 20, 2009
  • pp: 458–463

Optical resonant sensors: a method to reduce the effect of thermal drift

Thanh Le, Anatoliy Savchenkov, Nan Yu, Lute Maleki, and W. H. Steier  »View Author Affiliations

Applied Optics, Vol. 48, Issue 3, pp. 458-463 (2009)

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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

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

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)

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