Quantum sensors based on NV color centers in diamond
Our goal is developing precise sensors for magnetic field, temperature, acceleration and rotation using quantum mechanics.
The heart of our sensors is the nitrogen-vacancy (NV) color center in diamond. These crystal lattice defects behave like isolated atoms, possessing quantum spin states that are incredibly sensitive to external electromagnetic fields, temperature, and pressure. Our company designs and manufactures sensors that harness this quantum potential to create compact, high‑precision instruments for scientific and industrial applications.
The operating principle of our device is based on the fundamental effect of optically detected magnetic resonance (ODMR). This quantum mechanical phenomenon allows detect the NV center spin state using optical methods. The essence is that when diamond is irradiated with green laser, the NV centers transition to excited state and return to ground state, emitting red fluorescence. The intensity of this fluorescence directly depends on the specific spin state of the NV center. By recording the changes in the fluorescence brightness with highly sensitive photodetectors, we obtain a magnetic resonance spectrum. The frequency of the resonance depends on the external magnetic field (Zeeman effect), we can calculate both the magnitude and the direction of the magnetic field at each point with high accuracy, this way we reconstruct the external magnetic field vector using our sensor.
As standalone sensors, our company offers a quantum vector magnetometer (KVM-1) and a high-precision fiber-optic temperature sensor.
Diamond Sensors LLC is a young, rapidly developing company. We are the successor of Sensor Spin Technologies LLC in terms of the development of research and development of nitrogen vacancy color centers in diamond. The team unites doctors of sciences in the field of quantum physics, three candidates of physical sciences, graduate students, undergraduates and students of MIPT and MEPhI.
The material and technical base of the company is the laboratory of the Lebedev Physical Institute of the Russian Academy of Sciences.
About a company
7
Registered in Russia, USA and China
patents
100+
In the world's leading scientific journals
publications
15+
The overall experience of our scientific team
years old
Quantum Vector Magnetometer (KVM-1)
The operating principle is based on synchronous detection of resonance positions in the optically detected magnetic resonance spectra of NV color centers in diamond.
NV centers are point-like atom-like defects in the diamond crystal lattice and are produced in a controlled manner in synthetic diamond by electron beam irradiation and subsequent annealing.
Weight:
850 grams
Dimensions:
54x80x182 mm³
Measurement frequency:
1 kHz
Dynamic range:
±10⁻⁴ Tl
Spectral sensitivity:
1 Nt/√Hz
Type:
Vector
Application areas
Independent navigation on magnetic anomalies of the Earth's field (MAGNAV)
Engineering intelligence and humanitarian demining
Remote current measurement
Remote monitoring and diagnostics of pipelines, including from UAVs
Fundamental scientific research
Geophysical exploration
Environmental and industrial monitoring
Medicine and biomedical imaging
Satellite‑based monitoring of Earth’s magnetic field
News
Diamond Sensors LLC offers the supply of a KVM — 1 magnetometer with the specified characteristics or the development and manufacture of a magnetometer according to the customer’s technical specifications.
Diamond Sensors LLC provides research and development in the field of creating a quantum gyroscope based on an NV center in diamond, a high-sensitivity fiber temperature sensor, and an accelerometer.
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