2020/08/05 by Pengfei Wang, You Huang, M. Shen +9 · 1 citation
Chemistry · Engineering · Materials Science · Physics and Astronomy · #Chemistry #Crystallography #Diamond #Diamond and Carbon-based Materials Research #Force Microscopy Techniques and Applications #Integrated Circuits and Semiconductor Failure Analysis #Materials science #Nitrogen #Optoelectronics #Physics #Quantum #Quantum mechanics #Vacancy defect #physics.app-ph #quant-ph
paper · pdf · doi:10.1103/physreva.102.040601
published as Phys. Rev. A 102, 040601 (2020) · 5 pages, 4 figures
arxiv created 2020/08/05 · openalex created_date 2020/08/10 · openalex publication_date 2020/10/20 · arxiv updated 2020/10/28 · openalex updated_date 2026/08/05
We demonstrate the superresolution localization of the nitrogen-vacancy centers in diamond by a 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 superresolution imaging and achieve a localizing accuracy better than 1.4\phantom\rule4pt0exnm 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\phantom\rule4pt0exnm 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.