26.01.21 - IRTG Seminar: Daqing Wang "Controlling light-molecule interaction using a Fabry-Perot microcavity"
Dr. Daqing Wang, University Kassel, Germany
| When |
Jan 26, 2021
from 06:00 PM to 07:00 PM |
|---|---|
| Where | Webinar via zoom |
| Contact Name | Simone Ortolf |
| Contact Phone | 203 97666 |
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Controlling light-molecule interaction using a Fabry-Perot microcavity
Control of light-matter coupling at the quantum level is an enabling technique for many emerging quantum technologies. We report on recent advances in achieving efficient coupling of light with a single molecule using an optical Fabry-Perot microcavity [1,2]. We demonstrate that the efficient cavity-molecule coupling converts the molecule to an effective two-level system. In this regime, a single molecule acts as a nearly perfect reflecting mirror and exhibits optical nonlinearity at the ultimate level of single photons.
[1] Wang, D., Kelkar, H., Martin-Cano, D., Rattenbacher, D., Shkarin, A., Utikal, T., Götzinger, S. & Sandoghdar, V. Turning a molecule into a coherent two-level quantum system, Nature Physics 15, 483-489 (2019).
[2] Wang, D., Kelkar, H., Martin-Cano, D., Utikal, T., Götzinger, S. & Sandoghdar, V. Coherent coupling of a single molecule to a scanning Fabry-Perot microcavity, Phys. Rev. X 7, 021014 (2017).
