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Title: Polarization rotation of slow light with orbital angular momentum in ultracold atomic gases

Abstract

We consider the propagation of slow light with an orbital angular momentum (OAM) in a moving atomic medium. We have derived a general equation of motion and applied it in analyzing propagation of slow light with an OAM in a rotating medium, such as a vortex lattice. We have shown that the OAM of slow light manifests itself in a rotation of the polarization plane of linearly polarized light. To extract a pure rotational phase shift, we suggest to measure a difference in the angle of the polarization plane rotation by two consecutive light beams with opposite OAM. The differential angle {delta}{alpha}{sub l} is proportional to the rotation frequency of the medium {omega}{sub rot} and the winding number l of light, and is inversely proportional to the group velocity of light. For slow light the angle {delta}{alpha}{sub l} should be large enough to be detectable. The effect can be used as a tool for measuring the rotation frequency {omega}{sub rot} of the medium.

Authors:
;  [1];  [2];  [3]
  1. Institute of Theoretical Physics and Astronomy of Vilnius University, A. Gostauto 12, Vilnius 01108 (Lithuania)
  2. SUPA, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom)
  3. SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG (United Kingdom)
Publication Date:
OSTI Identifier:
21028089
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 76; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.76.053822; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ATOMS; BEAMS; EQUATIONS OF MOTION; GASES; LIGHT TRANSMISSION; OPTICS; ORBITAL ANGULAR MOMENTUM; PHASE SHIFT; POLARIZATION; ROTATION; TEMPERATURE RANGE 0000-0013 K; VELOCITY; VORTICES; WAVE PROPAGATION

Citation Formats

Ruseckas, Julius, Juzeliunas, Gediminas, Oehberg, Patrik, and Barnett, Stephen M. Polarization rotation of slow light with orbital angular momentum in ultracold atomic gases. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.76.053822.
Ruseckas, Julius, Juzeliunas, Gediminas, Oehberg, Patrik, & Barnett, Stephen M. Polarization rotation of slow light with orbital angular momentum in ultracold atomic gases. United States. https://doi.org/10.1103/PHYSREVA.76.053822
Ruseckas, Julius, Juzeliunas, Gediminas, Oehberg, Patrik, and Barnett, Stephen M. Thu . "Polarization rotation of slow light with orbital angular momentum in ultracold atomic gases". United States. https://doi.org/10.1103/PHYSREVA.76.053822.
@article{osti_21028089,
title = {Polarization rotation of slow light with orbital angular momentum in ultracold atomic gases},
author = {Ruseckas, Julius and Juzeliunas, Gediminas and Oehberg, Patrik and Barnett, Stephen M},
abstractNote = {We consider the propagation of slow light with an orbital angular momentum (OAM) in a moving atomic medium. We have derived a general equation of motion and applied it in analyzing propagation of slow light with an OAM in a rotating medium, such as a vortex lattice. We have shown that the OAM of slow light manifests itself in a rotation of the polarization plane of linearly polarized light. To extract a pure rotational phase shift, we suggest to measure a difference in the angle of the polarization plane rotation by two consecutive light beams with opposite OAM. The differential angle {delta}{alpha}{sub l} is proportional to the rotation frequency of the medium {omega}{sub rot} and the winding number l of light, and is inversely proportional to the group velocity of light. For slow light the angle {delta}{alpha}{sub l} should be large enough to be detectable. The effect can be used as a tool for measuring the rotation frequency {omega}{sub rot} of the medium.},
doi = {10.1103/PHYSREVA.76.053822},
url = {https://www.osti.gov/biblio/21028089}, journal = {Physical Review. A},
issn = {1050-2947},
number = 5,
volume = 76,
place = {United States},
year = {2007},
month = {11}
}