🔮 Quantum Grade · NV Centers

Quantum Diamonds

Type IIa single crystal CVD diamond with engineered Nitrogen-Vacancy (NV) centers — the leading platform for room-temperature quantum sensing, quantum memory, and qubit networks. Millisecond T₂ coherence times. Isotopically purified ¹²C available.

Type IIa
Purity Grade
ms T₂
Coherence Time
Room Temp
Operation
¹²C ≥99.99%
Isotope Option
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Technical Specifications

Complete datasheet.

Crystal TypeType IIa — <1 ppm nitrogen
NV Density10¹¹ – 10¹⁵ cm⁻³ (specified at order)
T₂ Coherence TimeUp to ~1 ms (¹²C grade)
T₁ Spin Relaxation~1 ms at room temperature
Crystal Orientation(100) — standard / (111) on request
Available Sizes2×2 mm to 10×10 mm plates
Isotopic Purity (¹²C)Natural (98.9%) or ≥99.99%
Thickness Range0.3 – 2.0 mm
Surface Roughness<1 nm (epi-ready grade)
ZPL Wavelength (NV⁻)637 nm
Photon CollectionDiamond SIL (solid immersion lens) option
CharacterizationODMR, PL mapping, T₂ measurement
Available Grades

Choose your quantum specification.

Standard
Natural Abundance ¹²C
98.9% ¹²C, natural isotopic abundance. T₂ ~100–300 µs. Cost-effective option for sensing and educational applications.
Most Popular
Enriched ¹²C (99.95%)
Near-isotopically pure carbon eliminates ¹³C bath decoherence. T₂ ~0.5–1 ms. For demanding magnetometry and computing qubit platforms.
Research Grade
Ultra-Pure ¹²C (99.999%)
Maximum isotopic purity, sub-ppb nitrogen background. T₂ approaching ms regime. For frontier quantum computing research.
High Density
High-NV Ensemble
NV density >10¹⁴ cm⁻³ for ensemble magnetometry. Optimized for DC and AC magnetic field imaging and gradient sensing.
Single-Center
Single NV Devices
Ultra-low NV density (~1 NV per µm²). For single-spin experiments, diamond scanning-probe sensors, and qubit isolation research.
Custom
Application-Specific
Specify NV density, nitrogen concentration, isotopic purity, and geometry. We'll grow and characterize to your target specification.
Use Cases

Quantum sensing at scale.

🧲
Quantum Magnetometry
NV-center diamond magnetometers achieve femtotesla sensitivity at room temperature — enabling cardiac magnetography, brain imaging, and underground navigation without cryogenics.
🧬
Single-Cell Biology
Diamond nanoparticles with NV centers image intracellular magnetic fields and temperature at nanoscale resolution — a new tool for single-cell metabolic studies.
💻
Quantum Computing Qubits
NV-center electron and nuclear spins are leading qubit candidates with long coherence at room temperature. Used in quantum network nodes and distributed quantum processor architectures.
🔐
Quantum Communication
Diamond NV centers emit single photons at room temperature — the core of photon-mediated qubit entanglement for quantum repeater networks and quantum key distribution.
Quantum-Grade Characterization

Every NV diamond.
Optically verified.

Quantum applications require knowing your material at the spin level. We characterize each piece with quantum optics techniques before shipment.

✓
ODMR spectrum confirming NV⁻ charge state and ZFS splitting
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PL fluorescence map showing NV density uniformity across plate
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T₂ coherence measurement (Hahn echo) for ensemble diamonds
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FTIR nitrogen measurement confirming Type IIa and isotopic grade
✓
Surface roughness (AFM) at multiple points on polished face
✓
Full CoA with crystal orientation, dislocation density, and dimensions
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Ships within 3 weeks · Certificate of Analysis included · No minimum order