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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 29, Iss. 10 — Oct. 1, 2012
  • pp: 2897–2900

Numerical investigation of Rayleigh nanoparticle sensing using a whispering-gallery-mode resonator

Yuecheng Shen and Jung-Tsung Shen  »View Author Affiliations


JOSA B, Vol. 29, Issue 10, pp. 2897-2900 (2012)
http://dx.doi.org/10.1364/JOSAB.29.002897


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Abstract

We present a rigorous numerical study of a Rayleigh nanoparticle sensing scheme using a whispering-gallery-mode resonator and compare the results to a recent theoretical analysis. Our calculations confirm that the number of adsorbed nanoparticles is accurately proportional to the central spectral shift of the transmission spectrum. Moreover, our results show that when two particles are in proximity, so that each particle experiences the polarization field from the other, the induced secondary spectral shift remains small. Our calculations provide a basis for extending the sensing scheme to large particle influx regimes for real-world applications, such as the determination of the concentration of ultra-fine particles in arc welding, ambient atmosphere, combustion, or on-road aerosol due to traffic exhaust emissions.

© 2012 Optical Society of America

OCIS Codes
(230.5750) Optical devices : Resonators
(280.4788) Remote sensing and sensors : Optical sensing and sensors

ToC Category:
Optical Devices

History
Original Manuscript: July 10, 2012
Manuscript Accepted: August 24, 2012
Published: September 24, 2012

Citation
Yuecheng Shen and Jung-Tsung Shen, "Numerical investigation of Rayleigh nanoparticlesensing using a whispering-gallery-mode resonator," J. Opt. Soc. Am. B 29, 2897-2900 (2012)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-29-10-2897

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