Freiburg 2024 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 55: Poster VI
Q 55.37: Poster
Thursday, March 14, 2024, 17:00–19:00, Tent B
towards coherent dipole-dipole coupling: cryogenic single-molecule microscopy of dbatt dimers — •Siwei Luo1,2, Michael Becker1, Hisham Mazal1, Alexey Sharkin1, Aleksandr Oschepkov3, Konstantin Amsharov3, Tim Hebenstreit1,2, Jan Renger2,1, Vahid Sandoghdar1, and Stephan Götzinger1,2 — 1Max Planck Insitute for the Science of Light, Erlangen, Germany — 2Department of Physics, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany — 3Insitute of Chemistry, Martin Luther University Halle Wittenberg, Halle, Germany
Coherently coupled molecules are an interesting resource for quantum optics and quantum information processing, providing access to sub- and superradiant decay paths. Such pairs of molecules have only been found in the past by brute force methods, since molecules are usually randomly doped into the host matrix and high doping levels cannot be tolerated. To address this longstanding issue, our new approach is based on recent developments in organic chemistry where an organic linker with a known length of less than 2nm can connect two fused 2D acene emitters. Here we will present cryogenic single-molecule spectroscopy and localization microscopy studies on 2,3,8,9-dibenzanthanthrene (DBATT) dimers. By embedding these dimers in shock-frozen tetradecane matrices, they clearly demonstrate lifetime-limited linewidths and similar fluorescence spectra as single DBATT molecules. Our results are a first step towards a routine investigation of cooperative phenomena using molecular dimers.
Keywords: coherent dipole-dipole coupling; single molecule spectroscopy; localization microscopy; molecular dimer