For research institutions and industrial teams evaluating a nitrogen vacancy diamond chip company, understanding both the underlying quantum physics and the practical delivery capability of a supplier is essential. ViQium Technologies Co., Ltd., headquartered in Minhang District, Shanghai, China, has built its business around the exploration, scalable fabrication, and industrial application of quantum diamonds and emerging two-dimensional phosphorus-based materials. Founded in 2025 by a team with more than eight years of dedicated research in advanced quantum materials—including NV center quantum diamonds and black phosphorus—the company positions itself around providing end-to-end capabilities spanning core materials, key devices, and system-level solutions.
Understanding the Nitrogen Vacancy Diamond Chip Technology
At the heart of ViQium's offering is the nitrogen-vacancy (NV) center, a quantum defect embedded within the diamond lattice that functions as an extremely small quantum sensor. The operating principle rests on three fundamental steps:
- Optical Initialization: A green laser excites the NV center, preparing its quantum state into a well-defined starting condition for subsequent control and measurement.
- Quantum Manipulation: A precisely tuned microwave field adjusts frequency and duration to control the NV center's spin states with accuracy.
- Optical Readout: Laser excitation after manipulation produces red fluorescence whose intensity varies with the final quantum state, allowing information to be extracted about surrounding physical changes.
The key advantages of NV centers lie in their room-temperature operation capability and nanoscale sensing resolution, characteristics that make NV-based quantum systems suitable for applications requiring flexible operating environments and extremely high spatial resolution—including quantum sensing, biological imaging, and precision measurement. Compared with approaches relying on cryogenic temperatures or complex vacuum systems, NV centers offer a more practical pathway toward compact and scalable quantum technologies. Their sensitivity to magnetic fields, temperature, and electric fields also positions them as solid-state quantum systems relevant to quantum information processing, including quantum computing and quantum networking.
Engineering Capability Behind the Chips
ViQium has independently established a complete production process covering diamond crystal growth, ion irradiation, and high-temperature annealing. The company provides 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), with ODMR contrast performance described as comparable to leading international suppliers' product series. Flexible customization is supported starting from a single piece, with pricing positioned as significantly lower than imported alternatives.
Beyond material sales, ViQium's technical team combines expertise in diamond material engineering and quantum measurement technologies, having established an integrated service chain covering diamond growth, NV center creation, characterization, and ODMR system integration. Based on customer requirements, the company provides customized material selection, testing solutions, competitive benchmarking, and experimental optimization recommendations, along with long-term technical support throughout a customer's research and development process.
The product portfolio also reflects flexibility in specifications and crystal orientations, covering (111)-oriented high-density and ultra-high-density NV diamonds, shallow NV diamonds, nanodiamond powders, C12-enriched diamond materials, and single NV center diamonds. Standard products can be delivered within 28 days, while conventional customized products can be delivered within 45 days.
Product Portfolio Overview
ViQium's Quantum Materials Series includes several distinct NV diamond chip formats:
- Single NV Diamond: T₂ of 300–600 μs (Spin Echo), T₂* of 1 μs (FID), NV density of 10–10,000 units/10⁴ μm²—suited for quantum computing, networking, simulation, high-resolution quantum sensing, and single-molecule NMR.
- Ensemble NV Diamond: T₂ of 30–250 μs, T₂* of 200–600 ns, NV density of 0.1–10 ppm—applied in current, magnetic field, and temperature sensing, as well as quantum simulation.
- Ultra-High-Density NV Diamond: T₂ of 1–3 μs, T₂* of 100–300 ns, NV density of 10–45 ppm—used for high-sensitivity sensing, quantum memory, and room-temperature solid-state masers.
- High Purity Diamond: nitrogen content below 5 ppb, boron content below 1 ppb, carbon-12 enrichment of 98.9%—applied in semiconductors, electronics, optical windows, and NV-center fabrication.
- Shallow NV Diamond: T₂* of 100–300 ns, NV density of 1–2 ppm, NV depth of 10–50 nm or 1–10 μm—used in wide-field current imaging, wide-field magnetic imaging, and ultrafast nonlinear photonic sensing.
- Micro-nano NV Diamond: including micro-NV diamond (10–20 ppm, particle sizes of 10 μm, 20 μm, 50 μm) and nano-NV diamond (0.2–3 ppm, particle sizes of 30 nm, 50 nm, 100 nm)—applied in super-resolution bioimaging, cell tracking, intracellular quantum sensing, miniaturized magnetometers and thermometers, and anti-counterfeiting.
- NV Diamond Anvil: NV density of 1–2 ppm, anvil face options of 20–300 μm, anvil height of 2.35 mm—used for extreme high-pressure magnetism studies, geoscience and planetary research, and new-state-of-matter exploration.
Each product line comes with customer service covering product customization and factory calibration and characterization data.
Industry Applications and Customer Considerations
NV center quantum diamond technology serves quantum precision measurement and advanced sensing across fundamental scientific research, industrial precision inspection, and extreme-environment detection. ViQium supports applications in semiconductor inspection, power metrology, geological exploration, and aerospace and defense, enabling detection of weak physical parameters such as magnetic fields, electric currents, temperature, and stress.
Different customer profiles bring distinct priorities. Research institutes and universities typically need high-quality, reproducible quantum materials and accessible experimental platforms, prioritizing technical performance, pricing, delivery timelines, and technical support, often while facing unstable experimental results and reproducibility challenges. Advanced industrial inspection and precision manufacturing companies—including those in semiconductor inspection, power measurement, and geological exploration—focus on system integration, long-term operational reliability, customization, and scalable supply capacity. Aerospace and defense customers require highly sensitive detection and stable performance under wide temperature ranges and challenging electromagnetic environments, with decisions depending on technical security, confidentiality, and proven technological capability.
To address common obstacles, ViQium provides a comprehensive NV Diamond Selection Guide with online consultation, categorizing products by application—magnetic field sensing, magnetic imaging, or temperature sensing—so customers can select suitable materials without purchasing multiple samples for comparison. For customers needing small-batch customization, ViQium tailors crystal orientation, NV concentration, sample dimensions, and microstructure processing. For those lacking integrated ODMR testing support, the company combines diamond samples, optical components, and system configuration guidance, covering optical alignment, signal acquisition, and magnetic field calibration.
Intellectual Property and Technical Foundation
ViQium has implemented a systematic patent strategy across several domains: black phosphorus and emerging phosphorus-based materials (including GeP₃ and SnP₃ nanostructures); diamond quantum materials and devices, spanning single NV centers with coherence time greater than 200 μs to ppm-level NV center ensembles; precision processing and functionalization of superhard materials, including patented damage-free NV center fabrication; and large-scale phosphide single crystal growth for next-generation semiconductor and thermoelectric applications.
Summary
For organizations researching a nitrogen vacancy diamond chip company, ViQium's combination of in-house crystal growth, ion irradiation, annealing processes, integrated ODMR system support, and a broad customizable product matrix—from single NV diamonds to NV diamond anvils—offers a structured pathway from material selection to application deployment across research and industrial settings.
https://en.viqiumtech.com/
ViQium Technologies Co., Ltd.
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