SAMOP 2021 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 2: Nano-Optics and Optomechanics
Q 2.8: Poster
Montag, 20. September 2021, 16:30–18:30, P
Precise Approaches for Determining Transition Rates and Quantum Efficiency of Single Color Centers — •Di Liu1,2, Naoya Morioka3, Öney Soykal4, Izel Gediz1,2, Charles Babin1,2, Rainer Stöhr1,2, Takeshi Ohshima5, Nguyen tien Son6, Jawad Ul-Hassan6, Florian Kaiser1,2, and Jörg Wrachtrup1,2 — 13rd Institute of Physics, University of Stuttgart, Stuttgart, Germany — 2Institute for Quantum Science and Technology (IQST), Germany — 3Institute for Chemical Research, Kyoto University, Uji, Japan — 4Booz Allen Hamilton, McLean, VA, USA — 5National Institutes for Quantum and Radiological Science and Technology, Takasaki, Japan — 6Department of Physics, Chemistry and Biology, Linköping, Sweden
Optically-active spins in solids are appealing candidates for quantum technological applications due to the unique interplay between their spins and photons. The performance of those spin-based technologies is further boosted with highly-efficient spin-photon interfaces, such as a nanophotonic resonantor. The design of such nanostructures requires comprehensive understanding of the system’s spin-optical dynamics. To overcome this, we developed a full set of measurements combining sublifetime short resonant and off-resonant pulses to infer the transition rates of a single color center i.e. V1 center in silicon carbide, with high precision. With those measured rates, we also estimated the quantum efficiency of the system. Our method paves way for a better understanding of the intrinsic properties of color centers, which in turn guides the design of nanophotonic resonators.