Large-Range Frequency Tuning of a Narrow-Linewidth Quantum Emitter

Matthias Löbl 27th August 2020

We have achieved large-range frequency tuning of a single-photon emitter, a GaAs quantum dot in a bulk sample. The total tuning range is three orders of magnitude large than the quantum dot’s linewidth, which remains narrow throughout the entire tuning process. Our results are an important step towards building a hybrid system connecting a single-photon emitter to a rubidium quantum memory. You find our work published in Applied Physics Letters

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Large-Range Frequency Tuning of a Narrow-Linewidth Quantum Emitter

Interlayer excitons in bilayer MoS2

Natasha Tomm 11th August 2020

In our recent paper, we have shown that interlayer excitons in bilayer MoS2 exhibit both a high oscillator strength and highly tunable energies in an applied electric field. Owing to this very large tunability, we were able to optically probe the interaction between intra- and interlayer excitons as they were energetically tuned into resonance. These results have been published in Nature Nanotechnology. More details can also be read at UniNews.

Interlayer excitons in bilayer MoS2