Superresolution localization of nitrogen-vacancy centers in diamond with quantum-controlled photoswitching
| Autor: | Maosen Guo, Pei Yu, Chang-Kui Duan, Fazhan Shi, Mengqi Wang, Mengze Shen, Pengfei Wang, Ya Wang, You Huang, Jiangfeng Du |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Quantum Physics Microscope Spins Resolution (electron density) Phase (waves) FOS: Physical sciences Diamond Physics - Applied Physics Applied Physics (physics.app-ph) engineering.material 01 natural sciences Molecular physics 010305 fluids & plasmas law.invention law Vacancy defect Qubit 0103 physical sciences engineering Quantum Physics (quant-ph) 010306 general physics Quantum |
| Zdroj: | Physical Review A. 102 |
| ISSN: | 2469-9934 2469-9926 |
| Popis: | 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. Comment: 5 pages, 4 figures |
| Databáze: | OpenAIRE |
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