Meeting the Demand for High Coherence Nitrogen Vacancy Diamond in Modern Laboratories
Laboratories working on quantum sensing, fundamental physics, and precision measurement increasingly require nitrogen-vacancy (NV) diamond materials that deliver stable, reproducible quantum performance. Unstable experimental results and insufficient reproducibility remain common challenges for research teams, particularly for those without prior NV center experimental experience. ViQium Technologies Co., Ltd., headquartered in Minhang District, Shanghai, China, addresses this need through its established production platform covering diamond crystal growth, ion irradiation, and high-temperature annealing, providing quantum diamond materials engineered for high coherence performance in laboratory settings.
Understanding NV Center Quantum Diamond Technology
An NV center functions as an extremely small quantum sensor embedded within the diamond lattice. Its operation is based on three fundamental steps.
Optical Initialization: A green laser excites the NV center, initializing its quantum state into a well-defined starting condition, preparing it for subsequent quantum control and measurement.
Quantum Manipulation: A precisely tuned microwave field is applied to control the NV center's spin states, with frequency and duration adjustable to achieve accurate quantum state manipulation.
Optical Readout: The NV center is excited again with laser light, producing red fluorescence whose intensity varies with the final quantum state, allowing extraction of information about surrounding physical changes.
NV centers operate at room temperature and offer nanoscale sensing resolution, making them practical for quantum sensing, biological imaging, and precision measurement without reliance on cryogenic temperatures or complex vacuum systems. Their sensitivity to magnetic fields, temperature, and electric fields, combined with potential applications in quantum computing and quantum networking, positions NV-based quantum diamond as a system that integrates quantum sensing and quantum information processing for both scientific research and industrial use.
ViQium's High Coherence NV Diamond Portfolio for Laboratory Use
For laboratories seeking high coherence nitrogen vacancy diamond samples, ViQium offers a defined product set with quantified performance parameters.
Single NV Diamond: Suited for quantum computing, networking, simulation, high-resolution quantum sensing, and single-molecule NMR. Measured performance includes T₂ of 300–600 μs (Spin Echo), T₂* of 1 μs (FID), and NV density of 10–10,000 units per 10⁴ μm². Products are available in <100> and <111> orientations at 2×2×0.5 mm and 3×3×0.5 mm dimensions, with product customization and factory calibration and characterization data provided.
Ensemble NV Diamond: Designed for high-sensitivity precision sensing, including current, magnetic field, and temperature sensing, as well as quantum simulation. Parameters include T₂ of 30–250 μs (Spin Echo), T₂* of 200–600 ns (FID), and NV density of 0.1–10 ppm, also available in <100> and <111> orientations.
Ultra-High-Density NV Diamond: Applicable to high-sensitivity sensing and room-temperature solid-state masers, with T₂ of 1–3 μs, T₂* of 100–300 ns, and NV density of 10–45 ppm.
High Purity Diamond: Used in semiconductors, optical windows, and as substrates for single and shallow NV-center fabrication, with nitrogen content below 5 ppb, boron content below 1 ppb, and carbon-12 enrichment of 98.9%, supporting the coherence performance of downstream NV samples.
According to ViQium's technology platform description, the company can fabricate quantum diamond materials ranging from single NV centers with coherence time exceeding 200 μs to ppm-level high-concentration NV center ensembles, supported by proprietary technologies for NV center stress mitigation and magnetic sensing integration.
Engineering Advantages Behind Coherence Performance
ViQium has independently established a complete production process spanning diamond crystal growth, ion irradiation, and high-temperature annealing. This process supports medium- to high-density NV center diamond products (0.1–5 ppm) as well as ultra-high-density NV center diamond products (10–45 ppm), achieving high ODMR contrast performance with key parameters comparable to leading international suppliers' product series. Flexible customization is available starting from a single piece, allowing laboratories to obtain tailored crystal orientation, NV concentration, and sample dimensions without committing to large-volume orders. Standard products can be delivered within 28 days, while conventional customized products can be delivered within 45 days.
End-to-End Laboratory Support From Selection to Application
Selecting suitable NV diamond materials can be difficult for laboratories without established reference standards, particularly regarding optimal crystal orientation and NV center concentration for specific experimental requirements. ViQium addresses this through a comprehensive NV Diamond Selection Guide combined with professional online consultation, categorizing products by application requirements such as magnetic field sensing, magnetic imaging, and temperature sensing.
Beyond material supply, many laboratories also require integrated optically detected magnetic resonance (ODMR) testing support. ViQium's technical team combines expertise in diamond material engineering and quantum measurement technologies, offering an integrated service chain covering diamond growth, NV center creation, characterization, and ODMR system integration. Supporting test components, experimental parameters, and operation procedures are provided so that customers can obtain both NV diamond materials and testing solutions from a single source, including optical alignment, signal acquisition, and magnetic field calibration guidance.
Serving Research Institutes and Universities Worldwide
Research institutes and universities represent a core customer group for high coherence nitrogen vacancy diamond laboratory applications. These customers typically require high-quality, reproducible quantum materials and accessible experimental platforms to support fundamental physics validation and scientific discovery, prioritizing technical performance, product pricing, delivery timelines, and technical support. Headquartered in Shanghai with a global service network, ViQium provides reliable material supply and technical support across China and key international markets, guiding customers from initial technical communication and solution matching through sample validation and batch delivery.
Quality Assurance and Long-Term Reliability
ViQium implements batch-level control and traceability management throughout the entire NV center quantum diamond production and delivery process, ensuring performance stability and consistency across different material batches. Tailored technical training covering material characteristics, operating procedures, and key experimental considerations is provided according to customer needs, helping laboratories achieve effective material utilization and reliable experimental reproducibility. A collaborative support mechanism between sales and R&D teams enables direct technical response and continued follow-up for critical issues, with rapid response and remote collaboration available for urgent technical challenges.
For laboratories pursuing high coherence nitrogen vacancy diamond materials with defined, quantified performance and integrated experimental support, ViQium Technologies Co., Ltd. offers a materials-to-application pathway built on its own diamond growth, NV center fabrication, and ODMR integration capabilities.
https://en.viqiumtech.com/
ViQium Technologies Co., Ltd.
