Polariton condensate coherence in planar microcavities in a magnetic field
- Universitat Wuerzburg, TechnischePhysik, Wilhelm Conrad Roentgen Research Center for Complex Material Systems (Germany)
In planar GaAs microcavities in a magnetic field up to 5 T perpendicular to the structure growth plane, under conditions of resonant pulsed pumping to a point close to the inflection point of the lower dispersion curve, Zeeman splitting of the spin sublevels of the polariton condensate is observed. This is accompanied by a significant change in the degree of circular polarization and the second-order correlator g{sup 2}(0). It is found that the correlator is different for the spin sublevels of the polariton condensate, split in a magnetic field. In particular, correlator measurements indicate different condensation thresholds for the spin sublevels. The correlator values initially differing in terms of the absence of a field increase, reach a maximum, and then decrease and become equal for different polarizations in a field of 5 T.
- OSTI ID:
- 22645283
- Journal Information:
- Semiconductors, Journal Name: Semiconductors Journal Issue: 12 Vol. 50; ISSN SMICES; ISSN 1063-7826
- Country of Publication:
- United States
- Language:
- English
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