Report
Cavity-assisted resonance fluorescence from a nitrogen-vacancy center in diamond
| العنوان: | Cavity-assisted resonance fluorescence from a nitrogen-vacancy center in diamond |
|---|---|
| المؤلفون: | Yurgens, Viktoria, Fontana, Yannik, Corazza, Andrea, Shields, Brendan J., Maletinsky, Patrick, Warburton, Richard J. |
| سنة النشر: | 2024 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Physics - Optics |
| الوصف: | The nitrogen-vacancy center in diamond, owing to its optically addressable and long-lived electronic spin, is an attractive resource for the generation of remote entangled states. However, the center's low native fraction of coherent photon emission, $\sim$3\%, strongly reduces the achievable spin-photon entanglement rates. Here, we couple a nitrogen-vacancy center with a narrow extrinsically broadened linewidth (\unit[159]{MHz}), hosted in a micron-thin membrane, to the mode of an open optical microcavity. The resulting Purcell factor of $\sim$1.8 increases the fraction of zero-phonon line photons to above 44\%, leading to coherent photon emission rates exceeding four times the state of the art under non-resonant excitation. Bolstered by the enhancement provided by the cavity, we for the first time measure resonance fluorescence without any temporal filtering with $>$10 signal-to-laser background ratio. Our microcavity platform would increase spin-spin entanglement success probabilities by more than an order of magnitude compared to existing implementations. Selective enhancement of the center's zero-phonon transitions could furthermore unlock efficient application of quantum optics techniques such as wave-packet shaping or all-optical spin manipulation. Comment: Main manuscript: 10 pages, 4 figures. Supplementary Information: 9 pages, 5 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2403.04611 |
| رقم الانضمام: | edsarx.2403.04611 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |