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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 20 — Oct. 15, 2010
  • pp: 3405–3407

Negative radiation pressure on gain medium structures

Amit Mizrahi and Yeshaiahu Fainman  »View Author Affiliations

Optics Letters, Vol. 35, Issue 20, pp. 3405-3407 (2010)

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We demonstrate negative radiation pressure on gain medium structures, such that light amplification may cause a nanoscale body to be pulled toward a light source. Optically large gain medium structures, such as slabs and spheres, as well as deep subwavelength bodies, may experience this phenomenon. The threshold gain for radiation pressure reversal is obtained analytically for Rayleigh spheres, thin cylinders, and thin slabs. This threshold vanishes when the gain medium structure is surrounded by a medium with a matched refractive index, thus eliminating the positive scattering forces.

© 2010 Optical Society of America

OCIS Codes
(140.7010) Lasers and laser optics : Laser trapping
(200.4880) Optics in computing : Optomechanics
(260.2110) Physical optics : Electromagnetic optics
(350.4855) Other areas of optics : Optical tweezers or optical manipulation

ToC Category:
Physical Optics

Original Manuscript: July 12, 2010
Manuscript Accepted: September 7, 2010
Published: October 8, 2010

Amit Mizrahi and Yeshaiahu Fainman, "Negative radiation pressure on gain medium structures," Opt. Lett. 35, 3405-3407 (2010)

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