Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
Q: Fachverband Quantenoptik und Photonik
Q 58: Quantum Technologies – Color Centers I
Q 58.7: Vortrag
Donnerstag, 5. März 2026, 16:00–16:15, P 5
Creation and cavity coupling of a single SnV- center in nanodiamond — •Selene Sachero1, Robert Berghaus1, Florian Feuchmayr1, Emilio Corte2, Elena Nieto Hernandez2, Jens Fuhrman1, Sviatoslav Ditalia Tchernij2, Fedor Jelezko1, and Alexander Kubanek1 — 1Ulm university, Ulm, Germany — 2Turin university, Turin, Italy
Efficient coupling between quantum emitters and optical cavities is essential for scalable quantum photonic technologies. Group IV vacancy centers in diamond, particularly the negatively charged tin-vacancy center, have emerged as promising candidates due to their spectral stability, high Debye-Waller factor and large orbital splitting in ground-states. Reduction of the diamond host size to the nanoscale enables new opportunities in terms of integration and scalability. However, creating optically coherent quantum emitters in nanodiamonds remains a major challenge. Here, we present the fabrication of tin- vacancy (SnV−) centers by means of ion implantation and describe the optical properties of the created color centers. We achieve high-purity single-photon emission via resonant excitation and strong coherent drive. Moreover, we demonstrate controlled coupling of a single SnV− center in a nanodiamond to a fully tunable Fabry-Perot microcavity. At 4 K, lifetime reduction due to the Purcell effect is achieved. The obtained results demonstrate the potential of SnV− centers in nanodiamonds as a coherent single-photon source for quantum networks
Keywords: single photon source; SnV center; nanodiamonds; Fabry-Perot microcavity