title: High-resolution vector microwave magnetometry based on solid-state spins in diamond.
abstract: The measurement of the microwave field is crucial for many developments in microwave technology and related applications. However, measuring microwave fields with high sensitivity and spatial resolution under ambient conditions remains elusive. In this work, we propose and experimentally demonstrate a scheme to measure both the strength and orientation of the microwave magnetic field by utilizing the quantum coherent dynamics of nitrogen vacancy centres in diamond. An angular resolution of 5.7 mrad and a sensitivity of 1.0 μT Hz(-1/2) are achieved at a microwave frequency of 2.6000 GHz, and the microwave magnetic field vectors generated by a copper wire are precisely reconstructed. The solid-state microwave magnetometry with high resolution and wide frequency range that can work under ambient conditions proposed here enables unique potential applications over other state-of-art microwave magnetometry.
authors: 1] Hefei National Laboratory for Physics Sciences at the Microsacle and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China [2] Synergetic Innovation Centre of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors: Pengfei
authors: P
authors: Wang
authors: Hefei National Laboratory for Physics Sciences at the Microsacle and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
authors: Zhenheng
authors: Z
authors: Yuan
authors: 1] Hefei National Laboratory for Physics Sciences at the Microsacle and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China [2] Synergetic Innovation Centre of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors: Pu
authors: P
authors: Huang
authors: 1] Hefei National Laboratory for Physics Sciences at the Microsacle and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China [2] Synergetic Innovation Centre of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors: Xing
authors: X
authors: Rong
authors: 1] Hefei National Laboratory for Physics Sciences at the Microsacle and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China [2] Synergetic Innovation Centre of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors: Mengqi
authors: M
authors: Wang
authors: 1] Hefei National Laboratory for Physics Sciences at the Microsacle and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China [2] Synergetic Innovation Centre of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors: Xiangkun
authors: X
authors: Xu
authors: 1] Hefei National Laboratory for Physics Sciences at the Microsacle and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China [2] Synergetic Innovation Centre of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors: Changkui
authors: C
authors: Duan
authors: 1] Hefei National Laboratory for Physics Sciences at the Microsacle and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China [2] Synergetic Innovation Centre of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors: Chenyong
authors: C
authors: Ju
authors: 1] Hefei National Laboratory for Physics Sciences at the Microsacle and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China [2] Synergetic Innovation Centre of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors: Fazhan
authors: F
authors: Shi
authors: 1] Hefei National Laboratory for Physics Sciences at the Microsacle and Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China [2] Synergetic Innovation Centre of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
authors: Jiangfeng
authors: J
authors: Du