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Showing 1–8 of 8 results
Advanced filters: Author: Kentaro Yumigeta Clear advanced filters

  • By combining large-scale first-principles GW-BSE calculations and micro-reflection spectroscopy, the nature of the exciton resonances in WSe2/WS2 moiré superlattices is identified, highlighting non-trivial exciton states and suggesting new ways of tuning many-body physics.

    • Mit H. Naik
    • Emma C. Regan
    • Steven G. Louie
    Research
    Nature
    Volume: 609, P: 52-57

  • Here, the authors show brightening of dark excitons by strong coupling between cavity photons and high energy, spin-allowed, bright excitons in monolayer WSe2. In this regime, the commonly observed photoluminescence quenching stemming from the fast relaxation to the dark ground state is prevented.

    • Hangyong Shan
    • Ivan Iorsh
    • Christian Schneider
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-7

  • Here, the authors show that the interaction between microcavity photons and excitons in an atomically thin WSe2 results in a hybridized regime of strong light-matter coupling. Coherence build-up is accompanied by a threshold-like behaviour of the emitted light intensity, which is a fingerprint of a polariton laser effect.

    • Hangyong Shan
    • Lukas Lackner
    • Carlos Antón-Solanas
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • So far, only indirect evidence of Wigner crystals has been reported, but a specially designed scanning tunnelling microscope is used here to directly image them in a moiré heterostructure.

    • Hongyuan Li
    • Shaowei Li
    • Feng Wang
    Research
    Nature
    Volume: 597, P: 650-654