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Showing 1–16 of 16 results
Advanced filters: Author: Rainer F. Mahrt Clear advanced filters

  • Nonlinearity induced by a single photon is desirable because it can drive power consumption of optical devices to their fundamental quantum limit, and is demonstrated here at room temperature.

    • Anton V. Zasedatelev
    • Anton V. Baranikov
    • Pavlos G. Lagoudakis
    Research
    Nature
    Volume: 597, P: 493-497

  • Colloidal perovskite quantum dots hold promise for polaritonic devices with strong excitonic confinement. Here the authors report the observation of room-temperature cavity exciton-polariton condensation in a perovskite-based quantum dot solid, opening the door towards quantum and photonics applications.

    • Ioannis Georgakilas
    • David Tiede
    • Thilo Stöferle
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-8

  • Nanocrystals made from a semiconducting material have been shown to emit intense light when excited with an electric current. The technology could be used to build a type of laser that is more versatile than those in general use.

    • Thilo Stöferle
    • Rainer F. Mahrt
    News & Views
    Nature
    Volume: 617, P: 41-42

  • Net gain of ~10 dB µm–1 and sub-picosecond switching time are shown at room temperature for optical transistors using polymers in a microcavity.

    • Anton V. Zasedatelev
    • Anton V. Baranikov
    • Pavlos G. Lagoudakis
    Research
    Nature Photonics
    Volume: 13, P: 378-383

  • Through precise structural engineering, perovskite nanocrystals are co-assembled with other nanocrystal materials to form a range of binary and ternary perovskite-type superlattices that exhibit superfluorescence.

    • Ihor Cherniukh
    • Gabriele Rainò
    • Maksym V. Kovalenko
    Research
    Nature
    Volume: 593, P: 535-542

  • Artificial periodic lattices of microcavities filled with optically active materials can serve as a platform to explore a range of physical phenomena. Here, the authors prepare and analyse 2D Lieb lattices made from a tunable cavity array with an organic polymer which operates in the strong exciton–photon coupling regime and exhibits polariton condensation at room temperature.

    • Fabio Scafirimuto
    • Darius Urbonas
    • Thilo Stöferle
    ResearchOpen Access
    Communications Physics
    Volume: 4, P: 1-6

  • Excitonic single-photon superradiance is reported in individual perovskite quantum dots with a sub-100 ps radiative decay time, almost as short as the reported exciton coherence time.

    • Chenglian Zhu
    • Simon C. Boehme
    • Gabriele Rainò
    ResearchOpen Access
    Nature
    Volume: 626, P: 535-541

  • Cooperative quantum effects in superlattices of quantum dots made of caesium lead halide perovskite give rise to superfluorescence, with the individual emitters interacting coherently to give intense bursts of light.

    • Gabriele Rainò
    • Michael A. Becker
    • Thilo Stöferle
    Research
    Nature
    Volume: 563, P: 671-675

  • The lowest-energy exciton state in caesium lead halide perovskite nanocrystals is shown to be a bright triplet state, contrary to expectations that lowest-energy excitons should always be dark.

    • Michael A. Becker
    • Roman Vaxenburg
    • Alexander L. Efros
    Research
    Nature
    Volume: 553, P: 189-193

  • Recent theoretical works have predicted lasing/condensation in multimode exciton-polaritons, hybrid light-matter quasiparticles, but the origin and the dynamics of multimode condensation has not been experimentally investigated. The authors study the dynamics of multimode exciton-polariton condensation, revealing the experimental signatures of mode competition.

    • Darius Urbonas
    • Antti J. Moilanen
    • Thilo Stöferle
    ResearchOpen Access
    Communications Physics
    Volume: 7, P: 1-7