Hannover 2020 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 22: Poster Session - Atomic Physics III
A 22.3: Poster
Mittwoch, 11. März 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 Pfau1 — 15. 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)