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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 27 — Dec. 19, 2011
  • pp: 26733–26741

Orbital and spin dynamics of intraband electrons in quantum rings driven by twisted light

G. F. Quinteiro, P. I. Tamborenea, and J. Berakdar  »View Author Affiliations


Optics Express, Vol. 19, Issue 27, pp. 26733-26741 (2011)
http://dx.doi.org/10.1364/OE.19.026733


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Abstract

We theoretically investigate the effect that twisted light has on the orbital and spin dynamics of electrons in quantum rings possessing sizable Rashba spin-orbit interaction. The system Hamiltonian for such a strongly inhomogeneous light field exhibits terms which induce both spin-conserving and spin-flip processes. We analyze the dynamics in terms of the perturbation introduced by a weak light field on the Rasha electronic states, and describe the effects that the orbital angular momentum as well as the inhomogeneous character of the beam have on the orbital and the spin dynamics.

© 2011 OSA

OCIS Codes
(250.0250) Optoelectronics : Optoelectronics
(320.7130) Ultrafast optics : Ultrafast processes in condensed matter, including semiconductors

ToC Category:
Optoelectronics

History
Original Manuscript: September 2, 2011
Revised Manuscript: October 26, 2011
Manuscript Accepted: November 3, 2011
Published: December 14, 2011

Citation
G. F. Quinteiro, P. I. Tamborenea, and J. Berakdar, "Orbital and spin dynamics of intraband electrons in quantum rings driven by twisted light," Opt. Express 19, 26733-26741 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-27-26733


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References

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