Orientation determination of nitrogen-vacancy center in diamond using a static magnetic field  

作　　者：王杨鹏 章如健 杨燕 吴琴 于志飞 陈冰 Yangpeng Wang;Rujian Zhang;Yan Yang;Qin Wu;Zhifei Yu;Bing Chen(Department of Physics,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]Department of Physics,Hefei University of Technology,Hefei 230009,China

出　　处：《Chinese Physics B》2023年第7期249-253,共5页中国物理B（英文版）

基　　金：This work was supported by the National Key R&D Program of China(Grant No.2020YFA0309400);the National Natural Science Foundation of China(Grant No.12174081);the Fundamental Research Funds for the Central Universities(Grant Nos.JZ2021HGTB0126 and PA2021KCPY0052).

摘　　要：Nitrogen-vacancy(NV)centers in a bulk diamond are often employed to realize measurement of multiple physical quantities,which depends on orientation information of NV axis.We report a fast and effective method to determine the orientation of NV axis with the aid of a static magnetic field.By measuring the optically detected magnetic resonance spectra,we can precisely extract the polar angle information between the NV axis and the known magnetic field.Combining with the polar angle information of different kinds of NV centers,we employ the Nelder-Mead algorithm to get the optimal solution of the orientation of NV axis.This method is simple and efficient,and is easily applied in NV-based quantum sensing.

关 键 词：nitrogen-vacancy centers polar angle quantum sensing 

分 类 号：O441.2[理学—电磁学] TQ163[理学—物理]