Kwong, Nai H.
AffiliationCollege of Optical Sciences, University of Arizona
Department of Physics, University of Arizona
MetadataShow full item record
PublisherAmerican Physical Society
CitationHu, J., Wang, Z., Kim, S., Deng, H., Brodbeck, S., Schneider, C., ... & Binder, R. (2021). Polariton Laser in the Bardeen-Cooper-Schrieffer Regime. Physical Review X, 11(1), 011018.
JournalPhysical Review X
RightsCopyright © 2021 authors. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.
Collection InformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at firstname.lastname@example.org.
AbstractMicrocavity exciton polariton systems can have a wide range of macroscopic quantum effects that may be turned into better photonic technologies. Polariton Bose-Einstein condensation and photon lasing have been widely accepted in the limits of low and high carrier densities, but identification of the expected Bardeen-Cooper-Schrieffer (BCS) state at intermediate densities remains elusive, as the optical-gain mechanism cannot be directly inferred from existing experiments. Here, using a microcavity with strong polarization selectivity, we gain direct experimental access to the reservoir absorption in the presence of polariton condensation and lasing, which reveals a fermionic gain mechanism underlying the polariton laser. A microscopic many-particle theory shows that this polariton lasing state is consistent with an open-dissipative-pumped system analog of a polaritonic BCS state. © 2021 authors. Published by the American Physical Society.
NoteOpen access article
VersionFinal published version
SponsorsAir Force Office of Scientific Research
Except where otherwise noted, this item's license is described as Copyright © 2021 authors. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license.