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Hannover 2020 – scientific programme

The DPG Spring Meeting in Hannover had to be cancelled! Read more ...

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A: Fachverband Atomphysik

A 22: Poster Session - Atomic Physics III

A 22.3: Poster

Wednesday, March 11, 2020, 16:00–18:00, Empore Lichthof

On-demand single-photon source based on thermal rubidium — •Florian Christaller1, Max Mäusezahl1, Felix Moumtsilis1, Annika Belz1, Hao Zhang1, Oliver de Vries2, Marco Plötner2, Thomas Schreiber2, Hadiseh Alaeian1, Harald Kübler1, Robert Löw1, and Tilman Pfau115. Physikalisches Institut and Center for Integrated Quantum Science and Technology IQST, Universität Stuttgart, Germany — 2Fraunhofer-Institut für Angewandte Optik und Feinmechanik IOF, Jena, Germany

Photonic quantum devices based on atomic vapors at room temperature are intrinsically reproducible as well as scalable and integrable. Besides a quantum memory for single photons one key device in the field of quantum information processing is an on-demand single-photon source. A promising candidate for realization relies on the combination of four-wave mixing and the Rydberg blockade effect, as demonstrated for ultracold atoms [1] and recently for room-temperature atoms in a micro-cell [2]. For the next generation single-photon source at high repetition rates, we can exploit the latest developments in laser technology by using a 1010 nm fiber amplifier to reach the Rydberg state. At a repetition rate of 1 MHz we reach a peak pulse-power of 100 W for Fourier-limited nanosecond pulses. Here we report on the characterization of two fiber amplifiers and on the latest status towards the high repetition rate single-photon generation at room-temperature.

[1] Dudin et al., Science 336, 6083 (2012)

[2] Ripka et al., Science 362, 6413 (2018)

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