Making the invisible, visible

Bringing diamond-based quantum technology around the globe, empowering the next quantum leap.
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Calibration-free
Room temperature
Biocompatible
Revolutionary technologies need revolutionary sensors

We have developed atom-sized quantum sensors in diamonds, functioning under the hardest conditions.

Our products and services

NV-Diamond technology

Our quantum sensing technology involves sensors which are solid-state qubits embedded within diamonds known as the nitrogen-vacancy (NV) center. Quantum sensing with NV-centers breaks physical barriers in regard to spatial resolution and sensitivity unmatchable by classical sensors. NV centers operate at room temperature, without the need for additional shielding from the Earth's magnetic field, and contain electronic spins with long coherence times. The spin states can be optically activated and any changes to them optically detected. This allows for ultra-precise measurements of magnetic fields and other physical properties.

Technical Specs

Our current measurement limits

Magnetic field sensing

Minimal field strength: 0.1 nT (AC), 1 nT (DC)
Frequency range: 1 Hz - 10 GHz (AC)
Sensitivity: down to 10 pT/√Hz
Vectorial sensing possible

Magnetic field imaging

X/Y-resolution: 250 nm currently
X/Y-resolution be down to 100 nm
Field of view: up to 16 mm²

Temperature sensing

Temperature: -170° C to +700° C
Sensitivity: 76 µK/√Hz

Our Partners

Our network supports us in scientific research, industry application, and capital funding. Together, we build tomorrows world of quantum technology.

Scientific customers
Company Partners
Core Research Partners
Funding Partners
Our products and services

Our quantum sensing technology involves sensors which are solid-state qubits embedded within diamonds known as the nitrogen-vacancy (NV) center. Quantum sensing with NV-centers breaks physical barriers in regard to spatial resolution and sensitivity unmatchable by classical sensors. NV centers operate at room temperature and contain electronic spins with long coherence times. The spin states can be optically activated and any changes to them optically detected. This allows for ultra-precise measurements of magnetic fields and other physical properties.

12C enriched diamond

We offer a diamond with a high purity (99.99%) 1 µm 12C overgrown layer either implanted or non-implanted. Shallowly implanted NV-diamonds are only a few to tens of nanometers deep and each NV-center has a sensing volume is analogous to this depth. Therefore, a practical way to reduce background noise and improve coherence properties is to have a thin 1 µm, as pure as possible layer of 12C enriched diamond at the surface. 12C is an isotope of carbon that is not “active” for quantum sensing techniques detecting magnetic signal using NV-centers such as correlation spectroscopy. This results in a “quieter” quantum environment.

Material description:

(100) surface orientation
background nitrogen [Nₛ⁰] < 5 ppb
roughness Ra < 5 nm
4 x 4 x 0.5 mm, 1 µm 99.99% ¹²C overgrown layer
We offer unimplanted or implanted with depth of choice

13C NV-diamond for nanoscale quantum sensing

The cost and lead times involved in procuring electronic grade diamonds, maintaining a cleanroom environment as well as the handling of customs is often underestimated in seeking implantation and processing such as polishing. Not to mention issues with the most sensitive step of NV-diamond production - high temperature vacuum annealing. We would be a “one stop shop” and deliver acid cleaned and clean room prepared diamonds. We offer NV-centers at a depth from 5 to 115 nm. Concentration can vary, we recommend a nitrogen fluence of between 1012 - 1013 to have NV-centers 10 to 100 nm apart.

Material description:

(100) surface orientation
background nitrogen [Nₛ⁰] < 5 ppb
roughness Ra < 5 nm

Characterization Services

The diamonds we sell would be fully characterized and would come with a data sheet detailing their Rabi contrast, T1 and T2. This would all be done by an automated and standardized setup.

About us

At QuantumDiamonds we have a diverse team with a combined research experience of more than 20 years. Together we are working towards one goal: Making the invisible, visible.

Our Research

Quantum research has seen a rapid surge over the last years.

See All Publications

Micron-scale SABRE-enhanced NV-NMR Spectroscopy.

Arunkumar, N., Bucher, D. B., Turner M., TomHon P., Glenn, D., Lehmkuhl, S., Lukin, M., Park, H., Rosen, M., Theis, T. and Walsworth, R. L. Micron-scale SABRE-enhanced NV-NMR Spectroscopy. PRX Quantum 2, 010305 (2021)

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Orientation-independent room temperature optical 13C hyperpolarization in powdered diamond

Ajoy, A., Liu, K., Nazaryan, R., Lv, X., Zangara, P. R., Safvati, B., Wang, G., Arnold, D., Li, G., Lin, A., Raghavan, P., Druga, E., Dhomkar, S., Pagliero, D., Reimer, J. A., Suter, D., Meriles, C. A., & Pines, A. (2018). Orientation-independent room temperature optical 13 C hyperpolarization in powdered diamond. Science Advances, 4(5), eaar5492. https://doi.org/10.1126/sciadv.aar5492

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Geometry dependence of micron-scale NMR signals on NV-diamond chips

Bruckmaier, F., Briegel, K. D. & Bucher, D. B. (2021). Geometry dependence of micron-scale NMR signals on NV-diamond chips. Journal of Magnetic Resonance Open, 8–9, 100023. https://doi.org/10.1016/j.jmro.2021.100023

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