Super-resolution Localization of Nitrogen Vacancy Centers in Diamond with Quantum Controlled Photoswitching

• URL: http://arxiv.org/abs/2008.01970v1
• Date: Wed, 5 Aug 2020 07:36:05 GMT
• Title: Super-resolution Localization of Nitrogen Vacancy Centers in Diamond with Quantum Controlled Photoswitching
• Authors: Pengfei Wang, You Huang, Maosen Guo, Mengze Shen, Pei Yu, Mengqi Wang, Ya Wang, Chang-Kui Duan, Fazhan Shi, Jiangfeng Du
• Abstract summary: We demonstrate the super-resolution localization of nitrogen vacancy centers in diamond by a novel fluorescence photoswitching technique based on coherent quantum control. The photoswitching is realized by the quantum phase encoding based on pulsed magnetic field gradient.
• Score: 14.905176802056998
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We demonstrate the super-resolution localization of the nitrogen vacancy centers in diamond by a novel fluorescence photoswitching technique based on coherent quantum control. The photoswitching is realized by the quantum phase encoding based on pulsed magnetic field gradient. Then we perform super-resolution imaging and achieve a localizing accuracy better than 1.4 nm under a scanning confocal microscope. Finally, we show that the quantum phase encoding plays a dominant role on the resolution, and a resolution of 0.15 nm is achievable under our current experimental condition. This method can be applied in subnanometer scale addressing and control of qubits based on multiple coupled defect spins.

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