Ultrafast all-optical tuning of direct-gap semiconductor metasurfaces

Metasurfaces are not adjustable after fabrication, and a critical challenge is to realise a technique of tuning their optical properties that is both fast and efficient. Here, Shcherbakov et al. realise an ultrafast tunable metasurface with picosecond-scale large absolute reflectance modulation at l...

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Auteurs principaux: Maxim R. Shcherbakov, Sheng Liu, Varvara V. Zubyuk, Aleksandr Vaskin, Polina P. Vabishchevich, Gordon Keeler, Thomas Pertsch, Tatyana V. Dolgova, Isabelle Staude, Igal Brener, Andrey A. Fedyanin
Format: article
Langue:EN
Publié: Nature Portfolio 2017
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Accès en ligne:https://doaj.org/article/98924d74b9434b6abd67b6637d9c743a
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Résumé:Metasurfaces are not adjustable after fabrication, and a critical challenge is to realise a technique of tuning their optical properties that is both fast and efficient. Here, Shcherbakov et al. realise an ultrafast tunable metasurface with picosecond-scale large absolute reflectance modulation at low pump fluences.