Motional narrowing, ballistic transport, and trapping of room-temperature exciton polaritons in an atomically-thin semiconductor

M. Wurdack; E. Estrecho; S. Todd; T. Yun; M. Pieczarka; S. K. Earl; J. A. Davis; C. Schneider; A. G. Truscott; E. A. Ostrovskaya

doi:10.1038/s41467-021-25656-7

Nature Communications (Sep 2021)

Motional narrowing, ballistic transport, and trapping of room-temperature exciton polaritons in an atomically-thin semiconductor

M. Wurdack,
E. Estrecho,
S. Todd,
T. Yun,
M. Pieczarka,
S. K. Earl,
J. A. Davis,
C. Schneider,
A. G. Truscott,
E. A. Ostrovskaya

Affiliations

M. Wurdack: ARC Centre of Excellence in Future Low-Energy Electronics Technologies and Nonlinear Physics Centre, Research School of Physics, The Australian National University
E. Estrecho: ARC Centre of Excellence in Future Low-Energy Electronics Technologies and Nonlinear Physics Centre, Research School of Physics, The Australian National University
S. Todd: ARC Centre of Excellence in Future Low-Energy Electronics Technologies and Nonlinear Physics Centre, Research School of Physics, The Australian National University
T. Yun: ARC Centre of Excellence in Future Low-Energy Electronics Technologies and Nonlinear Physics Centre, Research School of Physics, The Australian National University
M. Pieczarka: ARC Centre of Excellence in Future Low-Energy Electronics Technologies and Nonlinear Physics Centre, Research School of Physics, The Australian National University
S. K. Earl: ARC Centre of Excellence in Future Low-Energy Electronics Technologies and Centre for Quantum and Optical Science, Swinburne University of Technology
J. A. Davis: ARC Centre of Excellence in Future Low-Energy Electronics Technologies and Centre for Quantum and Optical Science, Swinburne University of Technology
C. Schneider: Institut für Physik, Carl von Ossietzky Universität Oldenburg
A. G. Truscott: Laser Physics Centre, Research School of Physics, The Australian National University
E. A. Ostrovskaya: ARC Centre of Excellence in Future Low-Energy Electronics Technologies and Nonlinear Physics Centre, Research School of Physics, The Australian National University

DOI: https://doi.org/10.1038/s41467-021-25656-7
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 8

Abstract

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Room-temperature exciton polaritons in a monolayer WS2 are shown to display strong motional narrowing of the linewidth and enhanced first-order coherence. They can propagate for tens of micrometers while maintaining partial coherence, and display signatures of ballistic (dissipationless) transport.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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