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Giant optical nonlinearities from Rydberg excitons in semiconductor microcavities

Author

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  • Valentin Walther

    (Aarhus University
    Max Planck Institute for the Physics of Complex Systems)

  • Robert Johne

    (Max Planck Institute for the Physics of Complex Systems)

  • Thomas Pohl

    (Aarhus University
    Max Planck Institute for the Physics of Complex Systems)

Abstract

The realization of exciton polaritons—hybrid excitations of semiconductor quantum well excitons and cavity photons—has been of great technological and scientific significance. In particular, the short-range collisional interaction between excitons has enabled explorations into a wealth of nonequilibrium and hydrodynamical effects that arise in weakly nonlinear polariton condensates. Yet, the ability to enhance optical nonlinearities would enable quantum photonics applications and open up a new realm of photonic many-body physics in a scalable and engineerable solid-state environment. Here we outline a route to such capabilities in cavity-coupled semiconductors by exploiting the giant interactions between excitons in Rydberg states. We demonstrate that optical nonlinearities in such systems can be vastly enhanced by several orders of magnitude and induce nonlinear processes at the level of single photons.

Suggested Citation

  • Valentin Walther & Robert Johne & Thomas Pohl, 2018. "Giant optical nonlinearities from Rydberg excitons in semiconductor microcavities," Nature Communications, Nature, vol. 9(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-03742-7
    DOI: 10.1038/s41467-018-03742-7
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    Cited by:

    1. Trond I. Andersen & Ryan J. Gelly & Giovanni Scuri & Bo L. Dwyer & Dominik S. Wild & Rivka Bekenstein & Andrey Sushko & Jiho Sung & You Zhou & Alexander A. Zibrov & Xiaoling Liu & Andrew Y. Joe & Kenj, 2022. "Beam steering at the nanosecond time scale with an atomically thin reflector," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    2. Shun Feng & Aidan J. Campbell & Mauro Brotons-Gisbert & Daniel Andres-Penares & Hyeonjun Baek & Takashi Taniguchi & Kenji Watanabe & Bernhard Urbaszek & Iann C. Gerber & Brian D. Gerardot, 2024. "Highly tunable ground and excited state excitonic dipoles in multilayer 2H-MoSe2," Nature Communications, Nature, vol. 15(1), pages 1-10, December.

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