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Low-loss broadband antenna for efficient photon collection from a coherent spin in diamond

Riedel, Daniel and Rohner, Dominik and Ganzhorn, Marc and Kaldewey, Timo and Appel, Patrick and Neu, Elke and Warburton, Richard J. and Maletinsky, Patrick M.. (2014) Low-loss broadband antenna for efficient photon collection from a coherent spin in diamond. Physical review applied, Vol. 2, issue 6 , 064011.

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Official URL: http://edoc.unibas.ch/dok/A6337958

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Abstract

We report the creation of a low-loss broadband optical antenna giving highly directed output from a coherent single spin in the solid state. The device, a crystalline solid-state realization of a dielectric antenna, is engineered for individual nitrogen-vacancy electronic spins in diamond. We demonstrate a directionality close to 10. The photonic structure preserves the high spin coherence of single-crystal diamond ( T 2 ≳ 100 μ s). The single-photon count rate approaches a megahertz facilitating efficient spin readout. We thus demonstrate a key enabling technology for quantum applications such as high-sensitivity magnetometry and long-distance spin entanglement.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimental Physics (Warburton)
05 Faculty of Science > Departement Physik > Physik > Georg H. Endress-Stiftungsprofessur für Experimentalphysik (Maletinsky)
UniBasel Contributors:Warburton, Richard J and Riedel, Daniel and Ganzhorn, Marc and Rohner, Dominik and Kaldewey, Timo and Appel, Patrick and Neu, Elke and Maletinsky, Patrick M.
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Physical Society
ISSN:2331-7019
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:09 Jan 2018 15:04
Deposited On:10 Apr 2015 09:12

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