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Cited by 11Strong Light-Matter InteractionsSemiconductor Quantum Structures and DevicesOrbital Angular Momentum in Optics

Artificial gravity effect on spin-polarized exciton-polaritons

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Sedov, E. S., Kavokin, A. V.·2017·Scientific Reports
DOI 10.1038/s41598-017-10137-zPMC PMC5575251
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Abstract

The pseudospin dynamics of long-living exciton-polaritons in a wedged 2D cavity has been studied theoretically accounting for the external magnetic field effect. The cavity width variation plays the role of the artificial gravitational force acting on a massive particle: exciton-polariton. A semi-classical model of the spin-polarization dynamics of ballistically propagating exciton-polaritons has been developed. It has been shown that for the specific choice of the magnetic field magnitude and the initial polariton wave vector the polariton polarization vector tends to an attractor on the Poincaré sphere. Based on this effect, the switching of the polariton polarization in the ballistic regime has been demonstrated. The self-interference of the polariton field emitted by a point-like source has been shown to induce the formation of interference patterns.

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  • Recently substantially longer polariton lifetimes γC^-1 ∼ 200 ps and much longer travel distances (hundreds of microns to millimeters) have been achieved.

    “We note, however, at this point that recently substantially longer polariton lifetimes γ -1 C ∼ 200 ps and much longer travel distances (hundreds of microns to millimeters) have been achieved [20, 21].”

    From <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi mathvariant="italic">Zitterbewegung</mml:mi></mml:math> of exciton-polaritons (2018) · cites this paper as [21]

    The Introduction (page not provided) reports substantially longer polariton lifetimes and travel distances of a few millimetres. It gives the lifetime as on the order of 100 ps, however, not approximately 200 ps; it also does not specify distances of hundreds of microns. (LLM, conf=0.89)

    Experimental — accuracy not yet measured

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Authors
Sedov, E. S., & Kavokin, A. V.
Affiliations
  • Vladimir State University (RU)
  • St Petersburg University (RU)
Corresponding author
  • Sedov, E. S.
  • Kavokin, A. V.
ORCID
Kavokin, A. V.
Venue
Scientific Reports
Publisher
Springer Science and Business Media LLC
Published
2017-08-29
Volume
7
Issue
1
Pages
9797-9797
ISSN
2045-2322 (ISSN-L)
DOI
10.1038/s41598-017-10137-z
PMC
PMC5575251
OpenAlex
W2524337988
Cited by
11
References
2
Citations by year
2026: 1 · 2025: 1 · 2024: 1 · 2021: 3 · 2020: 2 · 2019: 2 · 2018: 1
FWCI
0.67
Type
journal article
Language
en
Open access
Licence
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • ePrints Soton (University of Southampton) (acceptedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • Russian Foundation for Basic Research (16-32-60104, 15-59-30406)
  • Engineering and Physical Sciences Research Council (EP/M025330/1, EP/M025330)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Strong Light-Matter Interactions
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Semiconductor Quantum Structures and Devices
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Orbital Angular Momentum in Optics
Keywords
exciton-polaritons, artificial gravity, external magnetic field, ballistic propagation, Poincaré sphere, polarization switching, self-interference, interference patterns, semiclassical model

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