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Prof. Stephan Götzinger

  • Professor
  • Room: A.3.230
  • Telephone: +49 9131 7133315
  • E-mail

My research is focused on solid-state quantum optics. In the past few years I have, for example, investigated methods to collect single photons with near-unity efficiency. Another emphasis is on techniques which can be used to enhance the interaction of a single photon with a single emitter.

2025

Hybridization of molecules via a common photonic mode

Jahangir Nobakht, André Pscherer, Jan Renger, Stephan Götzinger, Vahid Sandoghdar

Proceedings of the National Academy of Sciences of the United States of America 122 e2505161122 (2025) | Journal | PDF

Atoms and molecules usually hybridize and form bonds when they come in very close<br>proximity of each other. In this work, we show that molecules can hybridize even<br>through far-field electromagnetic interactions mediated by the shared mode of an<br>optical microcavity. We discuss a collective enhancement of the vacuum Rabi splitting<br>and study super- and subradiant states that arise from the cavity-mediated coupling<br>both in the resonant and dispersive regimes. Moreover, we demonstrate a two-photon<br>transition that emerges between the ground and excited states of the new optical<br>compound. Our experimental data are in excellent agreement with the predictions<br>of the Tavis–Cummings Hamiltonian and open the door to the realization of hybrid<br>light–matter materials.

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