Y
Yoan Léger
Researcher at University of Rennes
Publications - 95
Citations - 2055
Yoan Léger is an academic researcher from University of Rennes. The author has contributed to research in topics: Polariton & Quantum dot. The author has an hindex of 22, co-authored 86 publications receiving 1839 citations. Previous affiliations of Yoan Léger include European University of Brittany & Foton Motor.
Papers
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Probing the spin state of a single magnetic ion in an individual quantum dot.
TL;DR: In this paper, the fine structure of a confined exciton in the exchange field of a single Mn2+ ion (S=5/2) was analyzed in detail, and six emission lines were observed at zero magnetic field.
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Hydrodynamic nucleation of quantized vortex pairs in a polariton quantum fluid
Gaël Nardin,Gabriele Grosso,Yoan Léger,Barbara Piȩtka,Barbara Piȩtka,François Morier-Genoud,Benoit Deveaud-Plédran +6 more
TL;DR: In this paper, a polariton fluid flowing past an obstacle and the observation of nucleation of quantized vortex pairs in the wake of the obstacle is reported. But the experimental results are successfully reproduced by numerical simulations based on the resolution of the Gross-Pitaevskii equation.
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Multistability of a coherent spin ensemble in a semiconductor microcavity
TL;DR: This work demonstrates spin multistability with microcavity polaritons in a trap, and realizes high-efficiency power-dependent polarization switching and demonstrates an unexpected regime, where the system behaves as a high-contrast spin trigger.
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Valence-band mixing in neutral, charged, and mn-doped self-assembled quantum dots
TL;DR: In this paper, the authors analyzed the optical emission of single II-VI quantum dots containing 0 or 1 magnetic atom (manganese) and a controlled number of carriers (0, $\ifmmode\pm\else\textpm\fi{}1$ electron).
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Electrical Control of a Single Mn Atom in a Quantum Dot
TL;DR: The device permits us to prepare the dot in states with three different electric charges, 0, +1e, and -1e which result in dramatically different spin properties, as revealed by photoluminescence.