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Title: The role of Gouy phase on the mechanical effects of Laguerre-Gaussian light interacting with atoms

Abstract

We consider the case of Laguerre-Gaussian (LG) light with high values of radial index, p, and/or winding number l, focussing on the effects of the Gouy phase together with other phase contributions due to the curvature in a Laguerre Gaussian beam when it interacts with atoms at near resonance. We show here that these phase anomalies amount to a significant reduction of the axial wavevector and thus lead to additional contributions to the phase gradient in the vicinity of the focus plane. In consequence, the axial recoil effects due to the stimulated emission and absorption of light by the atom become smaller. This has important effects on the dissipative axial forces acting on the atom, on the momentum fluctuations associated with the photon absorption and stimulated emission and on diffraction of atoms through light masks created by LG beams.

Authors:
 [1];  [2]
  1. Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom)
  2. Technical University of Crete, Department of Electronic Computer Engineering, QLab, GR 73 100, Chania Crete Greece (Greece)
Publication Date:
OSTI Identifier:
22609052
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1742; Journal Issue: 1; Conference: SIMFP2016: 5. Saudi international meeting on frontiers of physics, Gizan (Saudi Arabia), 16-18 Feb 2016; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; ATOMS; BEAMS; DIFFRACTION; FLUCTUATIONS; MECHANICAL PROPERTIES; PHOTON-ATOM COLLISIONS; PHOTONS; REDUCTION; RESONANCE; STIMULATED EMISSION; VISIBLE RADIATION

Citation Formats

Lembessis, V. E., E-mail: vlempesis@ksu.edu.sa, Babiker, M., and Ellinas, D. The role of Gouy phase on the mechanical effects of Laguerre-Gaussian light interacting with atoms. United States: N. p., 2016. Web. doi:10.1063/1.4953130.
Lembessis, V. E., E-mail: vlempesis@ksu.edu.sa, Babiker, M., & Ellinas, D. The role of Gouy phase on the mechanical effects of Laguerre-Gaussian light interacting with atoms. United States. doi:10.1063/1.4953130.
Lembessis, V. E., E-mail: vlempesis@ksu.edu.sa, Babiker, M., and Ellinas, D. Fri . "The role of Gouy phase on the mechanical effects of Laguerre-Gaussian light interacting with atoms". United States. doi:10.1063/1.4953130.
@article{osti_22609052,
title = {The role of Gouy phase on the mechanical effects of Laguerre-Gaussian light interacting with atoms},
author = {Lembessis, V. E., E-mail: vlempesis@ksu.edu.sa and Babiker, M. and Ellinas, D.},
abstractNote = {We consider the case of Laguerre-Gaussian (LG) light with high values of radial index, p, and/or winding number l, focussing on the effects of the Gouy phase together with other phase contributions due to the curvature in a Laguerre Gaussian beam when it interacts with atoms at near resonance. We show here that these phase anomalies amount to a significant reduction of the axial wavevector and thus lead to additional contributions to the phase gradient in the vicinity of the focus plane. In consequence, the axial recoil effects due to the stimulated emission and absorption of light by the atom become smaller. This has important effects on the dissipative axial forces acting on the atom, on the momentum fluctuations associated with the photon absorption and stimulated emission and on diffraction of atoms through light masks created by LG beams.},
doi = {10.1063/1.4953130},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1742,
place = {United States},
year = {2016},
month = {6}
}