Field-programmable-gate-array based hardware platform for nitrogen-vacancy center based fast magnetic imaging

Author:

Liang Kaiqing123ORCID,Zhu Mingdong123ORCID,Qin Xi123ORCID,Meng Ziqing123,Wang Pengfei123ORCID,Du Jiangfeng1234ORCID

Affiliation:

1. CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences, University of Science and Technology of China 1 , Hefei 230026, China

2. CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China 2 , Hefei 230026, China

3. Hefei National Laboratory, University of Science and Technology of China 3 , Hefei 230088, China

4. Institute of Quantum Sensing and School of Physics, Zhejiang University 4 , Hangzhou 310027, China

Abstract

A nitrogen-vacancy center based scanning magnetic microscope can be used to characterize magnetics at the nanoscale with high sensitivity. This paper reports a field-programmable-gate-array based hardware system that is designed to realize control and signal readout for fast scanning magnetic imaging with a nitrogen-vacancy center. A 10-channel 1 Msps @ 20 bit analog signal generator, a 12-channel 50 ps resolution pulse generator, a 300 Msps @ 16 bit lock-in amplifier with proportional integral derivative control function, and a 4-channel 200 Msps counter are integrated on the platform. A customized acceleration algorithm is realized with the re-configurable field-programmable-gate-array chip to accelerate the imaging speed of the nitrogen-vacancy system, and the experimental results prove that the imaging efficiency can be accelerated by five times compared to the system without the acceleration algorithm. The platform has considerable potential for future applications of fast scanning magnetic imaging.

Funder

Strategic Priority Research Program of CAS

CAS

Innovation Program for Quantum Science and Technology

Anhui Initiative in Quantum Information Technologies

USTC Tang Scholar

Hefei Comprehensive National Science Center

Publisher

AIP Publishing

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