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Freiburg 2024 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 30: Color Centers I

Q 30.5: Talk

Wednesday, March 13, 2024, 12:00–12:15, HS 3118

Single-photon emission from silicon-vacancy color centers in polycrystalline diamond membranes — •Assegid Flatae1,2, Florian Sledz1,2, Haritha Kambalathmana1,2, Stefano Lagomarsino3,4, Silvio Sciortino3,4,5, and Mario Agio1,2,51Laboratory of Nano-Optics, University of Siegen, 57072 Siegen, Germany — 2Cμ-Research Center of Micro- and Nanochemistry and (Bio)Technology, University of Siegen, 57068 Siegen, Germany — 3Istituto Nazionale di Fisica Nucleare, Sezione di Firenze, 50019 Sesto Fiorentino, Italy — 4National Institute of Optics (INO), National Research Council (CNR), 50125 Florence, Ital — 5National Institute of Optics (INO), National Research Council (CNR), 50125 Florence, Italy

Single-color centers in thin polycrystalline diamond membranes are of interest in integrated quantum photonics and hybrid quantum systems. However, their practical application was so far limited by crystallographic defects, impurities and graphitic grain boundaries. We report on a single-photon source based on silicon-vacancy color centers in a polycrystalline diamond membrane, we discuss the spectroscopic approach and the photophysics, reaching g2(0)= 0.04.

Keywords: Silicon-vacancy center; polycrystalline diamond; diamond membrane; single-photon sources

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