Berlin 2024 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 27: Quantum Dots and Wires: Optics II
HL 27.7: Talk
Wednesday, March 20, 2024, 11:15–11:30, EW 202
Progress in Telecom C Band Single Photons from Semiconductor Quantum Dots — •Daniel Vajner1, Paweł Holewa2,3, Emilia Zieba-Ostój2, Maja Wasiluk2, Martin van Helversen1, Lucas Rickert1, Aurimas Sakanas4, Alexander Huck3, Kresten Yvind3, Niels Gregersen3, Anna Musiał2, Paweł Mrowinski2, Marcin Syperek2, Elizaveta Semenova1,3, and Tobias Heindel1 — 1Institute of Solid State Physics, Technical University of Berlin, 10623 Berlin, Germany — 2Wrocław University of Science and Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland — 3Technical University of Denmark, Kongens Lyngby 2800, Denmark — 4Quantum Foundry Copenhagen
We report progress towards high quality semiconductor quantum dot single photons at Telecom C-band wavelengths. This includes recent work demonstrating the coherent on-demand generation of indistinguishable photons from single QD devices consisting of InAs/InP QD-mesa structures heterogeneously integrated with a metallic reflector on a silicon wafer [1]. Furthermore, we show new experimental results which extend the employed two-photon-resonant excitation by using chirped excitation laser pulses as well as by adding a stimulation laser pulse resonant with the biexciton.
[1] Vajner, Daniel A., et al. arXiv preprint arXiv:2306.08668 (2023).
Keywords: Quantum Dots; Single Photons; Telecom C-Band; Quantum Communication; Quantum Technologies