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Photonic Architectures for Equilibrium High-Temperature Bose-Einstein Condensation in Dichalcogenide Monolayers

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep07432· OSTI ID:1624754
 [1];  [2]
  1. Univ. of Toronto, ON (Canada); DOE/OSTI
  2. Univ. of Toronto, ON (Canada)
Semiconductor-microcavity polaritons are composite quasiparticles of excitons and photons, emerging in the strong coupling regime. As quantum superpositions of matter and light, polaritons have much stronger interparticle interactions compared with photons, enabling rapid equilibration and Bose-Einstein condensation (BEC). Current realizations based on 1D photonic structures, such as Fabry-Pérot microcavities, have limited light-trapping ability resulting in picosecond polariton lifetime. We demonstrate, theoretically, above-room-temperature (up to 590 K) BEC of long-lived polaritons in MoSe2 monolayers sandwiched by simple TiO2 based 3D photonic band gap (PBG) materials. The 3D PBG induces very strong coupling of 40 meV (Rabi splitting of 62 meV) for as few as three dichalcogenide monolayers. Strong light-trapping in the 3D PBG enables the long-lived polariton superfluid to be robust against fabrication-induced disorder and exciton line-broadening.
Research Organization:
Rensselaer Polytechnic Inst., Troy, NY (United States)
Sponsoring Organization:
Natural Sciences and Engineering Research Council of Canada (NSERC); USDOE Office of Science (SC)
Grant/Contract Number:
FG02-06ER46347
OSTI ID:
1624754
Journal Information:
Scientific Reports, Journal Name: Scientific Reports Journal Issue: 1 Vol. 4; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (8)

Exciton–polaritons in van der Waals heterostructures embedded in tunable microcavities journal October 2015
Room-temperature exciton-polaritons with two-dimensional WS2 journal September 2016
Polariton hyperspectral imaging of two-dimensional semiconductor crystals text January 2019
Polariton hyperspectral imaging of two-dimensional semiconductor crystals journal September 2019
A low cost and large-scale synthesis of 3D photonic crystal with SP2 lattice symmetry journal August 2019
Monolayered MoSe 2 : a candidate for room temperature polaritonics journal October 2016
Biosensor architecture for enhanced disease diagnostics: lab-in-a-photonic-crystal journal January 2016
Two-photon absorption arises from two-dimensional excitons journal January 2018

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