Fiber-integrated silicon carbide silicon vacancy-based magnetometer
arXiv:2208.13173 · doi:10.1364/OL.476305
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 μT/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.
References in corpus (22)
- Coherent control of single spins in silicon carbide at room temperature
- Avoiding power broadening in optically detected magnetic resonance of single NV defects for enhanced DC-magnetic field sensitivity
- Isolated electron spins in silicon carbide with millisecond-coherence times
- High-fidelity spin and optical control of single silicon vacancy centres in silicon carbide
- Single-photon emitting diode in silicon carbide
- Nanofabricated and integrated colour centres in silicon carbide with high-coherence spin-optical properties
- Coherent control of nitrogen-vacancy center spins in silicon carbide at room temperature
- Bright room temperature single photon source at telecom range in cubic silicon carbide
- Selective Purcell enhancement of two closely linked zero-phonon transitions of a silicon carbide color center
- All-optical dc nanotesla magnetometry using silicon vacancy fine structure in isotopically purified silicon carbide
- Optical thermometry based on level anticrossing in silicon carbide
- Room temperature coherent manipulation of single-spin qubits in silicon carbide with a high readout contrast
- High precision vector magnetometry with uniaxial quantum centers in silicon carbide
- Vector magnetometry using silicon vacancies in 4H-SiC at ambient conditions
- Coherent electrical readout of defect spins in 4H-SiC by photo-ionization at ambient conditions
- Coherent Manipulation with Resonant Excitation and Single Emitter Creation of Nitrogen Vacancy Centers in 4H Silicon Carbide
- Characterization and formation of NV centers in 3C, 4H and 6H SiC: an \emph{ab initio} study
- nanoTesla magnetometry with the silicon vacancy in silicon carbide
- A robust fiber-based quantum thermometer coupled with nitrogen-vacancy centers
- Anisotropic Spin-Acoustic Resonance in Silicon Carbide at Room Temperature
- Optimization of the power broadening in optically detected magnetic resonance of defect spins in silicon carbide
- Enhancing fluorescence excitation and collection from the nitrogen-vacancy center in diamond through a micro-concave mirror