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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 2 — Jan. 15, 2006
  • pp: 196–198

Superenhanced backscattering of light by nanoparticles

Zhigang Chen, Allen Taflove, Xu Li, and Vadim Backman  »View Author Affiliations


Optics Letters, Vol. 31, Issue 2, pp. 196-198 (2006)
http://dx.doi.org/10.1364/OL.31.000196


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Abstract

We report a physical explanation for the phenomenon wherein the backscattering of light by dielectric particles of sizes between 100 and 1 nm is enhanced by 7–11 orders of magnitude. The phenomenon involves complex composite interactions between a dielectric microsphere and a nanoparticle positioned in close proximity to the microsphere. We provide both analytical and perturbation analyses that show that the enhanced backscattering intensity of a nanoparticle is proportional to the third power of its size parameter. Potential applications of this phenomenon include visible-light detection, characterization, and manipulation of particles as small as a few nanometers.

© 2006 Optical Society of America

OCIS Codes
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(290.1350) Scattering : Backscattering
(290.5850) Scattering : Scattering, particles
(290.5870) Scattering : Scattering, Rayleigh

ToC Category:
Scattering

Virtual Issues
Vol. 1, Iss. 2 Virtual Journal for Biomedical Optics

Citation
Zhigang Chen, Allen Taflove, Xu Li, and Vadim Backman, "Superenhanced backscattering of light by nanoparticles," Opt. Lett. 31, 196-198 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-2-196

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