Prof. Vahid Sandoghdar: Experiments with Single Molecules: From quantum optics to structure biology

Universität Ulm

Prof. Vahid Sandoghdar

MPI Physik des Lichts, Erlangen

I plan to start this presentation with an overview of our work over the past decade on the effi- cient coupling of light and single quantum emitters. Some examples of the recent achieve- ments include single-photon communication of two individual molecules at long distances [1], coherent nonlinear optical interactions, where a single organic molecule act as an efficient switch for weak beams of light [2] and coherent coupling of a single molecule to a mode of a microcavity [3]. The long-term goal of these projects is to establish a platform for nano- quantum-optical operations and cooperative interactions in a mesoscopic system of photons and quantum emitters [4-6]. In the second part of the talk, I will show how cryogenic single molecule microscopy and spectroscopy can provide the highest resolution in optical microscopy [7, 8], reaching three-dimensional Angstrom resolution in studying proteins.


[1] Y. Rezus, et al., Phys. Rev. Lett. 108, 093601 (2012).
[2] A. Maser, et al., Nature Photonics 10, 450 (2016).
[3] D. Wang, et al., Phys. Rev. X, to appear; arXiv:1612.05007
[4] S. Faez, et al., Phys. Rev. Lett. 113, 213601 (2014).
[5] H. Haakh, et al., Phys. Rev. A, 94, 053840 (2016).
[6] P. Türschmann, et al., submitted; arXiv:1702.05923
[7] C. Hettich, et al., Science 298, 385 (2002).
[8] S. Weisenburger, et al., Nature Methods 14, 141 (2017).

Coffee and tea for the colloquium's guests at 16:00 in front of the lecture hall.

Organisation: Prof. Dr. F. Jelezko, Tel. 23750

Host: Prof. Michaelis, Tel. 23050, off.: 23051