TY - JOUR
T1 - Vector-magnetic-field sensing via multifrequency control of nitrogen-vacancy centers in diamond
AU - Kitazawa, Sayaka
AU - Matsuzaki, Yuichiro
AU - Saijo, Soya
AU - Kakuyanagi, Kosuke
AU - Saito, Shiro
AU - Ishi-Hayase, Junko
N1 - Funding Information:
We thank Suguru Endo for useful discussion. This work was supported by JSPS KAKENHI Grant No. 15K17732. This work was also supported by MEXT KAKENHI Grants No. 15H05868, No. 15H05870, No. 15H03996, No. 26220602, and No. 26249108. This work was also supported by the Advanced Photon Science Alliance (APSA), JSPS Core-to-Core Program FY2013 Projects No. 2, and Spin-NRJ.
Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/10/26
Y1 - 2017/10/26
N2 - An ensemble of nitrogen-vacancy (NV) centers in diamond is an attractive device to detect small magnetic fields. In particular, by exploiting the fact that the NV center can be aligned along one of four different axes due to C3ν symmetry, it is possible to extract information concerning vector magnetic fields. However, in the conventional scheme, low readout contrasts of the NV centers significantly decrease the sensitivity of the vector-magnetic-field sensing. Here, we propose a way to improve the sensitivity of the vector-magnetic-field sensing of the NV centers using multifrequency control. Since the Zeeman energy of the NV centers depends on the direction of the axis, we can independently control the four types of NV centers using microwave pulses with different frequencies. This allows us to use every NV center for the vector field detection in parallel, which effectively increases the readout contrast. Our results pave the way to realize a practical diamond-based vector field sensor.
AB - An ensemble of nitrogen-vacancy (NV) centers in diamond is an attractive device to detect small magnetic fields. In particular, by exploiting the fact that the NV center can be aligned along one of four different axes due to C3ν symmetry, it is possible to extract information concerning vector magnetic fields. However, in the conventional scheme, low readout contrasts of the NV centers significantly decrease the sensitivity of the vector-magnetic-field sensing. Here, we propose a way to improve the sensitivity of the vector-magnetic-field sensing of the NV centers using multifrequency control. Since the Zeeman energy of the NV centers depends on the direction of the axis, we can independently control the four types of NV centers using microwave pulses with different frequencies. This allows us to use every NV center for the vector field detection in parallel, which effectively increases the readout contrast. Our results pave the way to realize a practical diamond-based vector field sensor.
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U2 - 10.1103/PhysRevA.96.042115
DO - 10.1103/PhysRevA.96.042115
M3 - Article
AN - SCOPUS:85032451315
SN - 2469-9926
VL - 96
JO - Physical Review A
JF - Physical Review A
IS - 4
M1 - 042115
ER -