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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 9 — Mar. 19, 2004
  • pp: 1827–1829

Reply to comment on “Trapping force, force constant, and potential depths for dielectric spheres in the presence of spherical aberrations”

Alexander Rohrbach, Holger Kress, and Ernst H. K. Stelzer  »View Author Affiliations


Applied Optics, Vol. 43, Issue 9, pp. 1827-1829 (2004)
http://dx.doi.org/10.1364/AO.43.001827


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Abstract

We acknowledge the helpful comment by Chaumet [Appl. Opt. 43, 1825 (2004)] on a recent study [Appl. Opt. 41, 2494 (2002)] in which we used a mathematical expression for the optical scattering and gradient forces, which had been introduced in an earlier paper [J. Opt. Soc. Am. A 18, 839 (2001)]. Our reply to the comment gives us the chance to clarify interesting points and to present a novel, to our knowledge, derivation of the two force components from the basic electromagnetic force density on a small polarizable particle. Our final expression [Appl. Opt. 41, 2494 (2002)] for the optical trapping force on particles in the Rayleigh-Gans regime (diameter ≤ λmedium) in a diffraction-limited, vectorial focus remains correctly published.

© 2004 Optical Society of America

OCIS Codes
(180.0180) Microscopy : Microscopy
(260.0260) Physical optics : Physical optics
(290.0290) Scattering : Scattering

History
Original Manuscript: August 14, 2003
Revised Manuscript: November 19, 2003
Published: March 20, 2004

Citation
Alexander Rohrbach, Holger Kress, and Ernst H. K. Stelzer, "Reply to comment on “Trapping force, force constant, and potential depths for dielectric spheres in the presence of spherical aberrations”," Appl. Opt. 43, 1827-1829 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-9-1827

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