Handheld device for non-contact thermometry via optically detected magnetic resonance of proximate diamond sensors
arXiv:2304.13293 · doi:10.1103/PhysRevApplied.19.054076
Abstract
Optically detected magnetic resonance (ODMR) spectroscopy of defect-rich semiconductors is being increasingly exploited for realising a variety of practical quantum sensing devices. A prime example is the on-going development of compact magnetometers based on the nitrogen-vacancy (NV) defect in diamond for the remote sensing of magnetic signals with high accuracy and sensitivity. In these applications, the ODMR-active material is integrated into the overall apparatus to form a self-contained sensor. However, some emerging applications require the sensing material to be in physical contact with an external object of interest, thus requiring an independent readout device. Here we present an ODMR-meter, a compact device specially designed to allow convenient, contactless monitoring of ODMR in a target object, and demonstrate its application to temperature monitoring with NV defects. Our prototype is composed of a handheld readout head (integrating all the necessary optical components and a microwave antenna) and a control box connected to a laptop computer, all made primarily from commercial off-the-shelf components. We test our device using an NV-rich bulk diamond as the object, demonstrate a temperature sensitivity of in static conditions, and demonstrate the feasibility of handheld operation. The limitations to measurement speed, sensitivity and accuracy are discussed. The presented device may find immediate use in medical and industrial applications where accurate thermometry is required, and can be extended to magnetic field measurements.
References in corpus (22)
- Quantum sensing
- The nitrogen-vacancy colour centre in diamond
- Nanometer scale quantum thermometry in a living cell
- Magnetometry with nitrogen-vacancy defects in diamond
- Sensitivity Optimization for NV-Diamond Magnetometry
- Temperature dependence of the nitrogen-vacancy magnetic resonance in diamond
- Optical magnetic detection of single-neuron action potentials using quantum defects in diamond
- Probing condensed matter physics with magnetometry based on nitrogen-vacancy centres in diamond
- High nitrogen-vacancy density diamonds for magnetometry applications
- Avoiding power broadening in optically detected magnetic resonance of single NV defects for enhanced DC-magnetic field sensitivity
- Sub-nanoscale Temperature, Magnetic Field and Pressure sensing with Spin Centers in 2D hexagonal Boron Nitride
- Measurement and Control of Single Nitrogen-Vacancy Center Spins above 600 K
- Real-time nanodiamond thermometry probing in-vivo thermogenic responses
- CMOS-Integrated Diamond Nitrogen-Vacancy Quantum Sensor
- Non-neurotoxic Nanodiamond Probes for Intraneuronal Temperature Mapping
- Imaging the local charge environment of nitrogen-vacancy centers in diamond
- Quantum diamond spectrometer for nanoscale NMR and ESR spectroscopy
- Optimised frequency modulation for continuous-wave optical magnetic resonance sensing using nitrogen-vacancy ensembles
- Detection of biological signals from a live mammalian muscle using a diamond quantum sensor
- Sub-nanotesla magnetometry with a fibre-coupled diamond sensor
- Microscale resolution thermal mapping using a flexible platform of patterned quantum sensors
- Real-time estimation of the optically detected magnetic resonance shift in diamond quantum thermometry