Our Technology
Solid-state quantum sensing on a chip.
RobQuant’s sensors are built on a proven quantum platform: nitrogen-vacancy centres in diamond, combined with integrated photonics. The result is a chip-scale magnetometer that works at room temperature (no cryogenics, no heated vapour cells), with the sensitivity and stability needed for research, medical, and industrial applications.
Nitrogen-Vacancy in Diamond
We use the quantum properties of Nitrogen-Vacancy (NV) centres in diamond, integrated with silicon photonics. NV centres are atomic-scale defects in diamond that are extremely sensitive to magnetic fields and can be read out with light at room temperature.
Diamond is an ideal host: it’s robust, optically transparent at the wavelengths we use, and compatible with planar fabrication. By embedding NV centres in a photonic structure, we collect more signal from each defect and improve sensitivity without increasing power or complexity.
Photonic Enhancement Architecture
Our patent-pending photonic enhancement architecture enables high sensitivity with low-power, eye-safe optical excitation. That allows us to produce a solid-state sensor chip using standard semiconductor fabrication (the same processes used for consumer electronics) so we can scale to volume and keep units robust and affordable.
The chip integrates the diamond with waveguides and optical interfaces on a single platform. That means smaller, more reliable systems: from benchtop instruments to future embedded sensors, without the bulk and cost of traditional quantum magnetometers.
Why Solid-State?
Unlike older quantum magnetometers (e.g. SQUIDs that need liquid helium, or vapour cells that need heating), our sensors run at room temperature with no cryogenics or ovens. They are solid-state, so they are robust, compact, and suitable for demanding environments, from research labs to future medical and industrial applications.
Related updates
- Innovate UK grant: quantum sensor prototype
- Physics World: quantum vision for healthcare
- EPSRC quantum sensing partnership
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