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arXiv · 2008.01970

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

Pengfei Wang·You Huang·Maosen Guo·Mengze Shen·Pei Yu·Mengqi Wang·Ya Wang·Chang-Kui Duan·Fazhan Shi·Jiangfeng Du
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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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Pengfei Wang, You Huang, Maosen Guo, Mengze Shen, Pei Yu, Mengqi Wang, Ya Wang, Chang-Kui Duan, Fazhan Shi, Jiangfeng Du. 2020-08-05. Super-resolution Localization of Nitrogen Vacancy Centers in Diamond with Quantum Controlled Photoswitching. https://doi.org/10.1103/physreva.102.040601

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