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

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.

arXiv comment5 pages, 4 figures

References in corpus (9)

• Nanometer scale quantum thermometry in a living cell
• Single-Photon Switching and Entanglement of Solid-State Qubits in an Integrated Nanophotonic System
• Room temperature entanglement between distant single spins in diamond
• Scalable quantum register based on coupled electron spins in a room temperature solid
• Magnetic spin imaging under ambient conditions with sub-cellular resolution
• Nanoscale NMR Spectroscopy and Imaging of Multiple Nuclear Species
• Sub-nanometer resolution in three-dimensional magnetic-resonance imaging of individual dark spins
• Room-temperature implementation of the Deutsch-Jozsa algorithm with a single electronic spin in diamond
• Single spin stochastic optical reconstruction microscopy