基于双跃迁方法的温度鲁棒金刚石磁测量方法  

Temperature-robust diamond magnetometry based on the double-transition method

作　　者：谢才津 朱云彬 谢一进 李廷伟 张闻哲 王毅凡 荣星 Caijin Xie;Yunbin Zhu;Yijin Xie;Tingwei Li;Wenzhe Zhang;Yifan Wang;Xing Rong(CAS Key Laboratory of Microscale Magnetic Resonance and School of Physical Sciences,University of Science and Technology of China,Hefei 230026,China;CAS Center for Excellence in Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;Hefei National Laboratory,University of Science and Technology of China,Hefei 230088,China)

机构地区：[1]中国科学技术大学中国科学院微观磁共振重点实验室&物理学院,安徽合肥230026 [2]中国科学技术大学中国科学院量子信息与量子科技前沿卓越创新中心,安徽合肥230026 [3]合肥国家实验室,安徽合肥230088

出　　处：《中国科学技术大学学报》2023年第7期1-7,69,共8页JUSTC

基　　金：supported by the Chinese Academy of Sciences (XDC07000000, GJJSTD20200001, QYZDB-SSWSLH005);Innovation Program for Quantum Science and Technology (2021ZD0302200);the National Key R&D Program of China (2018YFA0306600);Anhui Initiative in Quantum Information Technologies (AHY050000);Hefei Comprehensive National Science Center;and the Fundamental Research Funds for the Central Universities;the Youth Innovation Promotion Association of C hinese Academy of Sciences for the support

摘　　要：作为一种具有良好发展前景的室温固态传感器,基于氮-空位(NV)色心的金刚石磁力计在近年来得到了巨大的发展,大量工作展示了其在实现高空间分辨率和高灵敏度方面的潜力。尽管如此,考虑到在大多数应用场景中通常难以避免温度漂移的影响,NV色心零场分裂D对温度的依赖性使得金刚石磁测量方法在实际应用中面临巨大的挑战。在本文中,我们展示了一种基于双跃迁方法的温度鲁棒金刚石磁测量方法,通过在|m_(s)=±1>态未完全退简并的情况下,同时利用|m_(s)=0>次能级和|m_(s)=±1>次能级间的跃迁测量磁场,可以使由温度漂移导致D变化所产生的影响被抵消掉。目前,该方法已经可以使磁测量结果的漂移降低为原来的1/7,通过后续的改进,这种温度鲁棒的金刚石磁测量方法有望在未来被应用于生物磁学和空间科学研究中。As a promising solid-state sensor at room temperature,diamond magnetometers based on nitrogen-vacancy(NV)centers have been developed tremendously in recent years.Many studies have demonstrated its potential for achieving high spatial resolution and sensitivity.However,the temperature dependence of the zero-field splitting D of NV centers poses an enormous challenge for the application of diamond magnetometry,since it is difficult to avoid temperature drift in most application scenarios.Here,we demonstrate a type of temperature-robust diamond magnetometry based on the double-transition method.By utilizing both transitions between|m_(s)=0>and|ms=±>sublevels with incomplete degeneracy of the|m_(s)=±>states,the impacts of D variations induced by temperature drift can be counteracted.The drift of magnetic field measurement result has been reduced by approximately 7-fold.With further improvements,the temperaturerobust diamond magnetometry has the potential to be applied in biomagnetism and space science research.

关 键 词：金刚石磁力计 氮-空位色心 温度鲁棒性 

分 类 号：O773[理学—晶体学] TP212[自动化与计算机技术—检测技术与自动化装置]