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Q: Fachverband Quantenoptik und Photonik
Q 39: Posters: Quantum Optics and Photonics III
Q 39.37: Poster
Mittwoch, 11. März 2020, 16:30–18:30, Empore Lichthof
Multi-cell optical memories in warm Cs vapor — •Leon Meßner1,2, Luisa Esguerra Rodriguez1,2, and Janik Wolters1,2 — 1Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Institute of Optical Sensor Systems, Rutherfordstr. 2, 12489 Berlin, Germany. — 2TU Berlin, Institut für Optik und Atomare Physik, Hardenbergstr. 36, 10623 Berlin, Germany.
The storage of quantum optical pulses in atomic media is considered a key concept in the development of quantum computation and communication techniques. Developing feasable methods for scaling the number of pulses stored, is also an important step in enabling applications such as quantum repeaters [1] and readily available single photon sources [2].
In our experiment we are aiming to map optical excitations to collective atomic states in warm Cs vapor cells with on-demand storage and retrieval.
The design is based on an EIT scheme, where a Λ-type atomic system is coupled to free-space control and signal pulses. By deflecting these pulses with acousto-optic modulators prior to entering the atomic media, we can address multiple volumina inside the Cs vapor, thus creating a multi-cell memory [3].
This work is exploring the operational parameters to obtain reproducible optical deflection of the beams for consistent addressing of individual memory cells [4].
[1] Kimble, H., Nature 453, 1023-1030 (2008)
[2] Nunn, J. et al., PRL 110, 133601 (2013)
[3] Wolters, J. et al., PRL 119, 060502 (2017)
[4] Pu, Y. et al., Nat Commun 8, 15359 (2017)