Freiburg 2024 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 30: Color Centers I

Q 30.5: Vortrag

Mittwoch, 13. März 2024, 12:00–12:15, HS 3118

Single-photon emission from silicon-vacancy color centers in polycrystalline diamond membranes — •Assegid Flatae^1,2, Florian Sledz^1,2, Haritha Kambalathmana^1,2, Stefano Lagomarsino^3,4, Silvio Sciortino^3,4,5, and Mario Agio^1,2,5 — ¹Laboratory 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