Polarization dynamics in a photon Bose-Einstein condensate
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It has previously been shown that a dye-filled microcavity can produce a Bose-Einstein condensate of photons. Thermalization of photons is possible via repeated absorption and re-emission by the dye molecules. In this paper, we theoretically explore the behavior of the polarization of light in this system. We find that in contrast to the near complete thermalization between different spatial modes of light, thermalization of polarization states is expected to generally be incomplete. We show that the polarization degree changes significantly from below to above threshold, and explain the dependence of polarization on all relevant material parameters.
Moodie , R , Kirton , P G & Keeling , J M J 2017 , ' Polarization dynamics in a photon Bose-Einstein condensate ' Physical Review. A, Atomic, molecular, and optical physics , vol 96 , no. 4 , 043844 . DOI: 10.1103/PhysRevA.96.043844
Physical Review. A, Atomic, molecular, and optical physics
© 2017, American Physical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1103/PhysRevA.96.043844
Funding: “Laidlaw Research Internship” scheme at the University of St Andrews (RIM), EPSRC (EP/M010910/1) (PGK), EPSRC programs “TOPNES” (EP/I031014/1) and “Hybrid polaritonics” (EP/M025330/1) (JK).
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