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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 12 — Jun. 8, 2009
  • pp: 9718–9723

Detecting photons in the dark region of Laguerre-Gauss beams

Vasily Klimov, Daniel Bloch, Martial Ducloy, and Jose R. Rios Leite  »View Author Affiliations

Optics Express, Vol. 17, Issue 12, pp. 9718-9723 (2009)

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We show that a photon detector, sensitive to the magnetic field or to the gradient of electric field, can help to characterize the quantum properties of spatially-dependent optical fields. We discuss the excitation of an atom through magnetic dipole or electric quadrupole transitions with the photons of a Bessel beam or a Laguerre-Gauss (LG) beams. These spiral beams are shown to be not true hollow beams, due to the presence of magnetic fields and gradients of electric fields on beam axis. This approach paves the way to an analysis at the quantum level of the propagating light beams having a complicated spatial structure.

© 2009 Optical Society of America

OCIS Codes
(270.5570) Quantum optics : Quantum detectors
(050.4865) Diffraction and gratings : Optical vortices
(260.6042) Physical optics : Singular optics
(050.6624) Diffraction and gratings : Subwavelength structures

ToC Category:
Quantum Optics

Original Manuscript: April 14, 2009
Revised Manuscript: May 7, 2009
Manuscript Accepted: May 15, 2009
Published: May 26, 2009

Vasily Klimov, Daniel Bloch, Martial Ducloy, and Jose R. Rios Leite, "Detecting photons in the dark region of Laguerre-Gauss beams," Opt. Express 17, 9718-9723 (2009)

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