Single Emitters - from Microscopy and Sensing to Quantum Optics

Date

Jul 22, 2015

Time

4:30 PM - 5:30 PM

Speaker

Ilja Gerhardt

Affiliation

MPI für Festkörperforschung Stuttgart

Language

en

Main Topic

Physik

Other Topics

Physik

Host

Seminar Quantm Dynamics

Description

The spectroscopy of single emitters in the solid state was discovered first on single molecules at the end of the 1980ies. The field extended in the past two decades to single nano-crystals, quantum dots, single defect centers, and recently also to the detection of a single rare-earth ion. All this facilitated a novel field of research which interlinks optical microscopy and coherent spectroscopy methods. Nowadays, a large number of microbiological labs implement single photon counting on single emitters. In quantum optics, the generation of single photons and the direct access to a nanoscopic probe to the incident or the evanescent electrical field allows to explore novel phenomena such as coherent dipole dipole coupling, a direct coherent coupling to the incident field, or the generation of single photons by quantum emitters. In the past two years, our group was able to optically connect the field to atomic systems, which are know for their narrow-babd transitions and coherent optical phenomena such as photon storage [1]. A number of experiments on single emitters can gain by using atomic vapor cells in their detection. Novel experiments, such as integrated single photon sources for a variety of other experiments will be possible. In this talk, I will review the experimental developments and compare among different single emitters in the solid state. The recent experiments on integrating single molecule studies with atomic spectroscopy are outlined. Our planned developments in designing a high-flux and simultaneously spectrally narrow-band quantum light source will be outlined. [1] - P. Siyushev, G. Stein, J. Wrachtrup, and I. Gerhardt, Nature, 509, 66-70 (2014)

Last modified: Jul 22, 2015, 9:49:08 AM