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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Orbital Angular Momentum Exchange in the Interaction of Twisted Light with Molecules
Physical Review Letters, Volume 89, No. 14, Year 2002
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Description
In the interaction of molecules with light endowed with orbital angular momentum, an exchange of orbital angular momentum in an electric dipole transition occurs only between the light and the center of mass motion; i.e., internal “electronic-type” motion does not participate in any exchange of orbital angular momentum in a dipole transition. A quadrupole transition is the lowest electric multipolar process in which an exchange of orbital angular momentum can occur between the light, the internal motion, and the center of mass motion. This rules out experiments seeking to observe exchange of orbital angular momentum between light beams and the internal motion in electric dipole transitions. © 2002 The American Physical Society.
Authors & Co-Authors
Babiker, Mohamed M.
United Kingdom, York
University of York
Bennett, C. R.
United Kingdom, Farnborough
Qinetiq
Andrews, David L.
United Kingdom, Norwich
University of East Anglia
Statistics
Citations: 231
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1103/PhysRevLett.89.143601
ISSN:
00319007