SKM 2023 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HL: Fachverband Halbleiterphysik

HL 49: Quantum dots: Devices

HL 49.5: Vortrag

Freitag, 31. März 2023, 11:00–11:15, POT 151

Interfacing Semiconductor Quantum Dots with Photonic Wire Bonds — •Marco De Gregorio¹, Shangxuan Yu^{2, 3}, Donald Witt^{2, 3}, Becky Lin^{2, 3}, Matthew Mitchell², Tobias Huber-Loyola¹, Lukas Chrostowski^{2, 3}, Jeff F. Young^{2, 4}, Andreas Pfenning^{1, 2}, and Sven Höfling¹ — ¹Lehrstuhl für Technische Physik, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany — ²Stewart Blusson Quantum Matter Institute, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada — ³Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada — ⁴Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada

We present first experimental results of an alternative extraction technique of single photons emitted by semiconductor quantum dots. For this purpose, a photonic wire bond is directly attached to the end facet of a waveguide containing In(Ga)As semiconductor quantum dots grown by molecular beam epitaxy and connected to a single-mode optical fiber. We perform above-band and optical resonant excitation of the quantum dot and find that in this configuration, cross-polarization filtering of the single photons can be avoided, while measuring a steady stream of single-photons in fiber. The coupling efficiency can be further improved by optimized mode matching between photonic wire bond and waveguide.