Integrated Computational Materials, Process and Product Engineering – IC-MPPE 2022

Photonic quantum technologies relying on the generation and detection of light at the single-photon level play a central role in emerging quantum computing, quantum communication and quantum sensing applications. State-of-the-art experimental implementations most commonly place stringent requirements on the performance of the employed devices, components and systems, hence necessitating optimized material growth processes, nanofabrication technology, and system implementations. Here, recent progress within the Quantum Nano Photonics group at KTH Royal Institute of Technology will be summarized, in particular related to nanoscale materials development in the areas of single-photon generation and single-photon detection. Examples include atomic defects and quantum dots acting as sources for single and entangled photons, as well as superconducting nanowire devices employed as high-performance detectors for single photons in the visible and near-infrared wavelength ranges. Current trends in the respective fields will be outlined and emerging applications in quantum optics and beyond will be discussed.