QuantumCore™ Ultra Diamond

Ultra-Pure Electronic-Grade Single-Crystal CVD Diamond for Quantum and NV-Center Research

QuantumCore™ Ultra is an ultra-high-purity, electronic-grade single-crystal CVD diamond platform designed for applications requiring an exceptionally low nitrogen background and precise control over defect formation.

With nitrogen concentrations below approximately 10 ppb, QuantumCore™ Ultra provides a substantially cleaner diamond lattice than conventional optical-grade or nitrogen-rich NV diamond. The reduced nitrogen background makes it particularly attractive for researchers who want to create and control their own NV-center populations through irradiation, implantation, annealing, or related defect-engineering processes.

Unlike NVCore™ Ensemble and NVCore™ Premium, QuantumCore™ Ultra is not supplied as a high-density ensemble-NV material. Instead, it serves as a low-defect host crystal in which researchers can intentionally introduce vacancies and engineer the resulting NV-center concentration, depth distribution, and defect environment.

This low-background approach is especially valuable for experiments where unwanted paramagnetic impurities can limit spin coherence, ODMR linewidth, or defect reproducibility.

QuantumCore™ Ultra is particularly suited for:

• Controlled NV-center creation
• Quantum sensing
• Single-NV and low-density NV studies
• ODMR spectroscopy
• Spin-coherence measurements
• Ion implantation and electron irradiation studies
• Vacancy engineering and thermal annealing
• Defect and charge-state studies
• Quantum photonics
• Diamond electronic and optoelectronic research
• Fundamental studies of impurity-defect interactions

Because the starting nitrogen concentration is approximately three orders of magnitude lower than ppm-level optical-grade diamond, QuantumCore™ Ultra provides researchers with substantially greater control over the final NV population and surrounding spin environment.

Product selection guideline

For applications requiring pre-existing ensemble NV centers, NVCore™ Ensemble and NVCore™ Premium provide ready-to-use NV-containing diamond platforms. For general optical and spectroscopy applications, OptiCore™ Diamond offers a cost-effective optical-grade solution. QuantumCore™ Ultra is intended for researchers who is in electronics field or want to introduce NV centers or other defects themselves, starting from an ultra-pure, low-impurity diamond host for controlled defect engineering and quantum sensing studies.

Comparison across different diamond products

Raman spectrum of QuantumCore™ Ultra

Specifications of QuantumCore™ Ultra