Dresden 2020 – scientific programme

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HL: Fachverband Halbleiterphysik

HL 26: Focus Session: Integrated Quantum Photonics I

HL 26.1: Invited Talk

Tuesday, March 17, 2020, 09:30–10:00, POT 51

Nanophotonic quantum technology on silicon chips — •Carsten Schuck — Institute of Physics, University of Münster, Germany — CeNTech - Center for NanoTechnology, Münster, Germany — SoN - Center for Soft Nanoscience, Münster, Germany

Integrated quantum photonics holds great promise for increasing the complexity and system size of quantum communication, sensing and computation schemes through leveraging modern nanofabrication processes for replicating nanoscale devices with high reproducibility. The implementation of such integrated quantum technology requires single-photon sources, linear optic circuit components and single-photon detectors connected via a network of optical waveguides. Here we show how solid-state quantum emitters, nanophotonic devices and superconducting nanowire single-photon detectors can be efficiently interfaced to realize a versatile quantum technology platform on a silicon chip. We generate single-photons from defect centers in diamond as well as single molecules, which are efficiently coupled to optical waveguides. We realize nanophotonic circuit components that combine optical, electrical and mechanical functionality in novel material systems such as tantalum pentoxide-on-insulator and employ non-traditional computational design approaches. Waveguide-coupled superconducting nanowire single-photon detectors integrate seamlessly with such nanophotonic circuitry and offer high detection efficiency, low noise and excellent timing performance. We present progress towards integrating sources, circuits and detectors on-chip to match the demands of future large-scale implementations of quantum technologies.