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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 4 — Feb. 16, 2009
  • pp: 2089–2094

Three-dimensional subwavelength confinement of light with dielectric microspheres

Alexis Devilez, Nicolas Bonod, Jérôme Wenger, Davy Gérard, Brian Stout, Hervé Rigneault, and Evgeny Popov  »View Author Affiliations

Optics Express, Vol. 17, Issue 4, pp. 2089-2094 (2009)

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Dielectric microspheres are shown to be capable of confining light in a three-dimensional region of subwavelength dimensions when they are illuminated by tightly focused Gaussian beams. We show that a simple configuration, not involving resonances, permits one to reach an effective volume as small as 0.6 (λ/n)3. It is shown that this three-dimensional confinement arises from interferences between the field scattered by the sphere and the incident Gaussian beam containing high angular components.

© 2009 Optical Society of America

OCIS Codes
(180.0180) Microscopy : Microscopy
(230.3990) Optical devices : Micro-optical devices
(260.2110) Physical optics : Electromagnetic optics
(290.4020) Scattering : Mie theory
(290.5850) Scattering : Scattering, particles

ToC Category:

Original Manuscript: December 19, 2008
Revised Manuscript: January 27, 2009
Manuscript Accepted: January 27, 2009
Published: February 2, 2009

Virtual Issues
Vol. 4, Iss. 4 Virtual Journal for Biomedical Optics

Alexis Devilez, Nicolas Bonod, Jérôme Wenger, Davy Gérard, Brian Stout, Hervé Rigneault, and Evgeny Popov, "Three-dimensional subwavelength confinement of light with dielectric microspheres," Opt. Express 17, 2089-2094 (2009)

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