Fiber-integrated silicon carbide silicon vacancy-based magnetometer
- URL: http://arxiv.org/abs/2208.13173v1
- Date: Sun, 28 Aug 2022 08:41:37 GMT
- Title: Fiber-integrated silicon carbide silicon vacancy-based magnetometer
- Authors: Wei-Ke Quan, Lin Liu, Qin-Yue Luo, Xiao-Di Liu, Jun-Feng Wang
- Abstract summary: In this work, we demonstrate a compact fiber-integrated silicon carbide silicon vacancy-based vector magnetometer at room temperature.
We have paved the way for fiber-integrated silicon vacancy-based magnetometer applications in practical environments such as geophysics and biomedical sensing.
- Score: 11.189273140894919
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Silicon vacancy in silicon carbide has drawn much attention for various
quantum sensing. However, most of the previous experiments are achieved using
confocal scanning systems, which limit its applications in practical
applications. In this work, we demonstrate a compact fiber-integrated silicon
carbide silicon vacancy-based vector magnetometer at room temperature. First,
we effectively couple the silicon vacancy in a tiny silicon carbide slice to an
optical fiber tip and realize the readout of the spin signal through the fiber
at the same time. We then study the optically detected magnetic resonance
spectra at different laser and microwave powers, obtaining an optimized
magnetic field sensitivity of 12.3 {\mu}T/Hz1/2. Based on this, the
magnetometer is performed to measure the strength and polar angle of an
external magnetic field, respectively. Through these experiments, we have paved
the way for fiber-integrated silicon vacancy-based magnetometer applications in
practical environments such as geophysics and biomedical sensing.
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