Quantum optics: New platform for light-matter coupling

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The field of experimental quantum optics roots in our ability to control interaction between light and matter. A new work published by LMU-physicists led by Samarth Vadia and Alexander Högele tackles the challenge of engineering Fabry-Pérot cavities that simultaneously present large tunability, high mechanical stability, and operate at cryogenic temperatures under closed-cycle conditions by a combination of vibration reduction techniques.

Using this novel open cryo-cavity platform, they demonstrated the formation of exciton-polaritons with two-dimensional semiconductors as a hallmark of strong light-matter coupling. Our results establish the platform as a promising hardware to advance the field of solid-state quantum technologies.

Samarth Vadia, Johannes Scherzer, Holger Thierschmann, Clemens Schäfermeier, Claudio Dal Savio, Takashi Taniguchi, Kenji Watanabe, David Hunger, Khaled Karraï, and Alexander Högele. Open-Cavity in Closed-Cycle Cryostat as a Quantum Optics Platform. PRX Quantum