Freiburg 2024 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

Q: Fachverband Quantenoptik und Photonik

Q 55: Poster VI

Q 55.34: Poster

Thursday, March 14, 2024, 17:00–19:00, Tent B

Surface-supported single organic molecules demonstrate lifetime-limited linewidths — •Ashley Shin¹, Masoud Mirzaei^{1, 2}, Alexey Shkarin¹, Johannes Zirkelbach¹, Jan Renger¹, Tobias Utikal¹, Stephan Götzinger^{1, 2, 3}, and Vahid Sandoghdar^{1, 2} — ¹Max Planck Institute for the Science of Light, 91058 Erlangen, Germany — ²Department of Physics, Friedrich-Alexander University Erlangen-Nürnberg, 91058 Erlangen, Germany — ³Erlangen Graduate School in Advanced Optical Technologies (SAOT), Friedrich-Alexander University Erlangen-Nürnberg, 91052 Erlangen, Germany

Polycyclic aromatic hydrocarbons (PAHs) have robust photophysics, synthetic tunablity, and facile handling properties, making them an excellent platform for molecular quantum optics. The PAH molecules are often embedded in crystals to minimize environmental dephasing, which limits non-optical access that otherwise can be useful for nanoprobe technologies or novel nanophotonic designs. In this work, we investigate dibenzoterrylene (DBT) molecules placed on top of pristine anthracene crystals. Despite being at the interface between vacuum and crystal, the DBT molecules demonstrate Fourier-limited linewidths at sub-Kelvin temperatures. The on-surface DBTs emit at higher frequencies and longer lifetimes from their embedded counterparts, while following a similar temperature-dependent dephasing trend. We report via a comprehensive set of fluorescence measurements that desired photophysical properties of DBTs as single quantum emitters are preserved on the surface.

Keywords: Fourier-limited linewidth; Polycyclic aromatic hydrocarbons; Single quantum emitters; Dibenzoterrylene (DBT) molecules; Anthracene crystals