Erlangen 2018 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 43: Nano-Optics (Single Quantum Emitters)
Q 43.7: Vortrag
Mittwoch, 7. März 2018, 15:45–16:00, K 0.023
Two-photoninterference in an atom- quantum dot hybrid system — •Hüseyin Vural1, Simone L. Portalupi1, Julian Maisch1, Simon Kern1, Jonas H. Weber1, Markus Müller1, Michael Jetter1, Jörg Wrachtrup2, Robert Löw3, Ilja Gerhardt2, and Peter Michler1 — 1Institut für Halbleiteroptik und Funktionelle Grenzflächen, IQST and SCoPE, Universität Stuttgart, Allmandring 3, 70569 Stuttgart, Germany — 23. Physikalisches Institut and IQST, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart — 35. Physikalisches Institut and IQST, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart
Future quantum networks require flying qubits and stationary nodes. Hybridization of single semiconductor quantum dots (QD), which provide ultra-bright on-demand single-photon emission, and alkali vapors with their possibility of broadband photon storage capabilities constitute a reasonable platform for networks. However, spectral diffusion, inherent in most solid-state emitters, is a limiting aspect to the photonic quantum optical properties. Here, we investigate the role of spectral diffusion of QDs on the hybridization with a cesium (Cs)-vapor. Fine-tuning the QD emission between the Cs-D1 transitions enables a temperature dependent delay on the single quanta. The strong dependence of this effect on the photon's frequency is used to map spectral domain into temporal one, thus revealing insight into the diffusion dynamics. Moreover coherence of photon-vapor interaction is proved to be conserved by means of two-photon interference measurements. Theoretically achievable performances are presented.