Thumbnail
Access Restriction
Open

Author Lembessis, V. E. ♦ Babiker, M. ♦ Ellinas, D.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ ABSORPTION ♦ ATOMS ♦ BEAMS ♦ DIFFRACTION ♦ FLUCTUATIONS ♦ MECHANICAL PROPERTIES ♦ PHOTON-ATOM COLLISIONS ♦ PHOTONS ♦ REDUCTION ♦ RESONANCE ♦ STIMULATED EMISSION ♦ VISIBLE RADIATION
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.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-06-10
Publisher Place United States
Volume Number 1742
Issue Number 1


Open content in new tab

   Open content in new tab