2019/02/14 by Karin Groot-Berning, Thomas Kornher, Georg Jacob +8 · 1 citation
Computer Science · Materials Science · Physics and Astronomy · #Diamond and Carbon-based Materials Research #Dopant #Doping #Fabrication #Focused ion beam #Ion #Laser-Matter Interactions and Applications #Materials science #Nanotechnology #Optics #Optoelectronics #Photonics #Physics #Praseodymium #Quantum Information and Cryptography #Yttrium #cond-mat.mes-hall #cond-mat.other #quant-ph
paper · pdf · doi:10.1103/physrevlett.123.106802
published as Phys. Rev. Lett. 123, 106802 (2019) · 9 pages, 7 figures
arxiv created 2019/02/14 · openalex publication_date 2019/09/04 · arxiv updated 2019/09/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Single dopant atoms or dopant-related defect centers in a solid state matrix are of particular importance among the physical systems proposed for quantum computing and communication, due to their potential to realize a scalable architecture compatible with electronic and photonic integrated circuits. Here, using a deterministic source of single laser-cooled Pr+ ions, we present the fabrication of arrays of praseodymium color centers in yttrium-aluminum-garnet substrates. The beam of single Pr+ ions is extracted from a Paul trap and focused down to 30(9) nm. Using a confocal microscope, we determine a conversion yield into active color centers of up to 50% and realize a placement precision of 34 nm.