Berlin 2018 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 16: Focussed Session: Quantum Nanophotonics in Solid State Systems: Status, Challenges and Perspectives I (joint session HL/TT)
HL 16.7: Talk
Tuesday, March 13, 2018, 12:00–12:15, EW 201
On-chip hybrid quantum photonic circuits — Ali W. Elshaari1, Iman Esmaeil Zadeh2, Andreas Fognini2, Dan Dalacu3, Philip J. Poole3, Michael E. Reimer4, Val Zwiller1,2, and •Klaus D. Jöns1 — 1Applied Physics Department, KTH Stockholm, Sweden — 2Kavli Institute of Nanoscience, TU Delft, The Netherlands — 3National Research Council of Canada, Ottawa, Canada — 4Institute for Quantum Computing, University of Waterloo, Canada
Quantum communication applications require a scalable approach to integrate bright on-demand sources of entangled photon-pairs in complex on-chip quantum circuits. Currently, the most promising sources are based on III/V semiconductor quantum dots. However, complex photonic circuitry is mainly achieved in silicon photonics due to the tremendous technological challenges in circuit fabrication. We take the best of both worlds by developing a new hybrid on-chip nanofabrication approach [1], allowing to integrate III/V semiconductor nanowire quantum emitters into silicon-based photonics. We demonstrate for the first time on-chip generation, spectral filtering, and routing of single-photons from selected single and multiple nanowire quantum emitters all deterministically integrated in a CMOS compatible silicon nitride photonic circuit [2]. Our new approach eliminates the need for off-chip components, opening up new possibilities for large-scale quantum photonic systems with on-chip single- and entangled-photon sources.
[1] I. Esmaeil Zadeh et al., Nano Lett. 16(4), 2289-2294 (2016).
[2] A. W. Elshaari et al., Nat. Commun. 8, 379 (2017).