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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 20 — Oct. 2, 2006
  • pp: 9508–9521

Radiation torque on nonspherical particles in the transition matrix formalism

Ferdinando Borghese, Paolo Denti, Rosalba Saija, and Maria Antonia Iatì  »View Author Affiliations


Optics Express, Vol. 14, Issue 20, pp. 9508-9521 (2006)
http://dx.doi.org/10.1364/OE.14.009508


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Abstract

The torque exerted by radiation on small particles is recognized to have a considerable relevance, e.g., on the dynamics of cosmic dust grains and for the manipulation of micro and nanoparticles under controlled conditions. In the present paper we derive, in the transition matrix formalism, the radiation torque applied by a plane polarized wave on nonspherical particles. In case of circularly polarized waves impinging on spherical particles our equations reproduce the findings of Marston and Crichton [Phys. Rev. A30, 2508–2516 (1984)]. Our equations were applied to calculate the torque on a few model particles shaped as aggregates of identical spheres, both axially symmetric and lacking any symmetry, and the conditions for the stability of the induced rotational motion are discussed.

© 2006 Optical Society of America

OCIS Codes
(260.2110) Physical optics : Electromagnetic optics
(260.2160) Physical optics : Energy transfer
(290.0290) Scattering : Scattering

ToC Category:
Physical Optics

History
Original Manuscript: June 30, 2006
Revised Manuscript: September 11, 2006
Manuscript Accepted: September 20, 2006
Published: October 2, 2006

Citation
Ferdinando Borghese, Paolo Denti, Rosalba Saija, and Maria A. Iatì, "Radiation torque on nonspherical particles in the transition matrix formalism," Opt. Express 14, 9508-9521 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-20-9508


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