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Showing 1–6 of 6 results
Advanced filters: Author: Michael Förg Clear advanced filters

  • Cavity-enhanced light-matter interaction in the weak-coupling regime is known to result in Purcell enhancement. Here the authors demonstrate Purcell enhancement in the photoluminescence of vertical MoSe2-WSe2 heterostructures coupled to a micro-cavity and determine the light-matter coupling strength for interlayer excitons.

    • Michael Förg
    • Léo Colombier
    • Alexander Högele
    ResearchOpen Access
    Nature Communications
    Volume: 10, P: 1-6

  • Carbon nanotube-based single photon emitters allow for room-temperature operation, but suffer from vanishing indistinguishability due to strong dephasing. Following a theoretical proposal, the authors tackle the problem experimentally by using a cavity to enhance the photon coherence time and the emission spectral density in the regime of incoherent good cavity-coupling.

    • Lukas Husel
    • Julian Trapp
    • Alexander Högele
    ResearchOpen Access
    Nature Communications
    Volume: 15, P: 1-7

  • Here, the authors show that the photoluminescence of MoSe2/WSe2 heterobilayers is dominated by valley-direct excitons, whereas, in heterotrilayers, interlayer hybridization turns momentum-indirect interlayer excitons into energetically lowest states with phonon-assisted emission.

    • Michael Förg
    • Anvar S. Baimuratov
    • Alexander Högele
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • The electronic band structure of atomically thin transition metal dichalcogenides is strongly sensitive to the number of layers, resulting in modified light emission. Here, the authors investigate the cryogenic emission from bilayer WSe2 to identify the role of momentum-indirect excitons for its optical response.

    • Jessica Lindlau
    • Malte Selig
    • Alexander Högele
    ResearchOpen Access
    Nature Communications
    Volume: 9, P: 1-7

  • Excitons in various spin and valley configurations control the optical properties of ultrathin transition metal dichalcogenides. Here, the authors develop theoretical and experimental methods to determine the exciton g-factors for all possible spin-valley configurations of excitons in monolayer and bilayer WSe2, including valley-indirect excitons.

    • Jonathan Förste
    • Nikita V. Tepliakov
    • Alexander Högele
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8