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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 24 — Nov. 23, 2009
  • pp: 21918–21924

Trapping double negative particles in the ray optics regime using optical tweezers with focused beams

Leonardo André Ambrosio and H. E. Hernández-Figueroa  »View Author Affiliations


Optics Express, Vol. 17, Issue 24, pp. 21918-21924 (2009)
http://dx.doi.org/10.1364/OE.17.021918


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Abstract

The capabilities of optical tweezers to trap DNG (double negative) spherical particles, with both negative permittivity and permeability, are explored in detail by analyzing some interesting theoretical features not seeing in conventional DPS (double positive) particles possessing positive refractive index. The ray optics regime is adopted and, although this regime is quite simple and limited, its validity is already known and tested for DPS particles such as biological cells and molecules trapped by highly focused beams. Simulation results confirm that even for ray optics, DNG particles present unusual and interesting trapping characteristics.

© 2009 Optical Society of America

OCIS Codes
(080.0080) Geometric optics : Geometric optics
(170.4520) Medical optics and biotechnology : Optical confinement and manipulation
(160.3918) Materials : Metamaterials

ToC Category:
Optical Tweezers or Optical Manipulation

History
Original Manuscript: September 14, 2009
Revised Manuscript: October 27, 2009
Manuscript Accepted: November 5, 2009
Published: November 16, 2009

Citation
Leonardo A. Ambrosio and H. E. Hernández-Figueroa, "Trapping double negative particles in the ray optics regime using optical tweezers with focused beams," Opt. Express 17, 21918-21924 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-24-21918


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