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Simultaneous detection of position and temperature of micromagnet using a quantum microscope

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Micromagnets,as a promising technology for microscale manipulation and detection,have been the subject of extensive study.However,providing real-time,noninvasive feedback on the position and temperature of micromagnets in complex operational environments continues to pose a significant challenge.This paper presents a quantum imaging device utilizing diamond nitrogen-vacancy[NV]centers capable of providing simultaneous feedback on both the position and temperature of a micromagnet.The device achieves a temporal resolution of 2 s and a spatial resolution of 1.3 pm.Through flux locali-zation analysis,we have determined a positioning accuracy within 50 pm and a temperature accuracy within 0.4 K.

diamond nitrogen-vacancy centerssimultaneous detectionmicromagnetpositiontemperature

石振荣、李中豪、温焕飞、郭浩、马宗敏、唐军、刘俊

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School of Instrument and Electronics,North University of China,Taiyuan 030051,China

School of Semiconductors and Physics,North University of China,Taiyuan 030051,China

2024

中国光学快报(英文版)
中国光学学会 中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD
影响因子:1.305
ISSN:1671-7694
年,卷(期):2024.22(10)