Demonstration of the SUPER excitation in a SnV center
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Defect centers in nanodiamonds are promising systems for quantum technologies. They can act as bright single-photon emitters and also provide a spin–photon interface, making them attractive candidates for quantum networks. Controlling the excitation of specific spin states is therefore an important step in manipulating their quantum dynamics.
In this work, we apply the Swing-Up of quantum EmitteR (SUPER) scheme to excite the optical transition of a tin-vacancy (SnV) center in a nanodiamond using ultrashort optical pulses. So far, the SUPER scheme had mainly been applied to semiconductor quantum dots. Here, we explore how it can be used in a different class of quantum emitters.
Our theoretical work shows how this excitation scheme influences the dynamics and the spin states of the SnV center. The study was complemented by experimental efforts from our collaborators in the Integrated Quantum Photonics Group at HU Berlin.
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