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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 29, Iss. 12 — Dec. 1, 2012
  • pp: 2576–2578

Light scattering from a moving atom

Wei Guo  »View Author Affiliations

JOSA A, Vol. 29, Issue 12, pp. 2576-2578 (2012)

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In this work, scattering of an incident electric field from a moving atom is reexamined classically in two steps: the time-dependent current density created by the field inside the atom is first calculated under the electric-dipole approximation, and is then used to calculate the field scattered from the atom. Unlike the conventional frame-hopping method, the present method does not need to treat the Doppler effect as an effect separated from the scattering process, and it derives instead of simply uses the Doppler effect.

© 2012 Optical Society of America

OCIS Codes
(000.2690) General : General physics
(260.2110) Physical optics : Electromagnetic optics
(290.5850) Scattering : Scattering, particles

ToC Category:
Physical Optics

Original Manuscript: August 7, 2012
Revised Manuscript: September 22, 2012
Manuscript Accepted: October 20, 2012
Published: November 21, 2012

Wei Guo, "Light scattering from a moving atom," J. Opt. Soc. Am. A 29, 2576-2578 (2012)

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  14. In principle, the electron should additionally experience a damping force to account for the fact that as the scattered field is emitted, the electron must lose its energy; see [9], for example. But, since this force is not essential in the present discussion, it is ignored for simplicity.
  15. B. Rossi, Optics (Addison-Wesley, 1957).
  16. Alternatively, the scattered field E⃗s can also be calculated by applying the Liénard–Wiechert relations [9] More specifically, the relations are first used to find the electric fields due to the electron and rest part of the atom. The electric fields are then added and simplified, with the help of the electric-dipole approximation, to get E⃗s.
  17. W. Guo, “Effects of back-action on the measurement of a sub-wavelength separation in the near-field region,” J. Opt. 13, 075704 (2011). [CrossRef]
  18. O. Keller, “Propagator picture of the spatial confinement of quantum light emitted from an atom,” Phys. Rev. A 58, 3407–3425 (1998). [CrossRef]

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