SKM 2023 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 25: Molecular Electronics and Photonics (joint session TT/CPP)

CPP 25.4: Talk

Tuesday, March 28, 2023, 12:45–13:00, HSZ 201

Towards cavity-mediated molecule-molecule coupling — •André Pscherer¹, Jahangir Nobakht¹, Tobias Utikal¹, Stephan Götzinger^2,1,3, and Vahid Sandoghdar^1,2 — ¹Max Planck Institute for the Science of Light, Erlangen, Germany — ²Department of Physics, Friedrich- Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany — ³Graduate School in Advanced Optical Technologies (SAOT), Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany

We recently demonstrated that a single molecule coupled to a Fabry-Pérot cavity reacts nonlinearly to light at the single-photon level. This was shown in four-wave mixing, optical switching and photon number sorting experiments [1]. We aim to exploit this level of control to couple two molecules to each other via the cavity mode and to explore two-photon transitions that become possible in such a system. We gain access to the excited state population through spectrally tailored cavity mirrors which transmit red-shifted fluorescence. In this contribution, we will report on our progress, challenges, and intermediate results.

[1] A. Pscherer et al., Phys. Rev. Lett. 127, 133603 (2021)