ViQium's NV Diamond Materials: Quantum Sensing Solutions
Company Background and Strategic Positioning
ViQium Technologies Co., Ltd., founded in 2025 and headquartered in Minhang District, Shanghai, China, has built a global service network supporting research and industrial customers from material selection all the way to successful application deployment. The company was established to address three persistent industry pain points: high barriers to quantum technology adoption caused by a lack of scalable fabrication and end-to-end capabilities, performance limitations in conventional measurement approaches that require a transition to high-sensitivity, non-invasive sensing, and research inefficiency stemming from unstable experimental results and insufficient reproducibility in quantum materials.
ViQium's strategic focus centers on the exploration, scalable fabrication, and industrial application of quantum diamonds and emerging two-dimensional phosphorus-based materials. The company is committed to providing global research institutions and industrial partners with end-to-end capabilities spanning core materials, key devices, and system-level solutions, paired with customized technical support to accelerate quantum technology adoption.
The founding team's core strength comes from researchers with academic backgrounds from several leading universities in China, bringing more than eight years of dedicated research in advanced quantum materials, including NV center quantum diamonds and black phosphorus. Through continuous work in material synthesis, defect engineering, and device integration, the team has developed differentiated technological capabilities spanning quantum physics, materials science, and optical engineering—bridging laboratory breakthroughs with industrial-scale implementation.
Core Technology: How NV Center Quantum Diamonds Work
ViQium's core technology is built on nitrogen-vacancy (NV) centers in quantum diamond, a quantum defect system embedded within the diamond lattice that functions as an extremely small quantum sensor. The operating principle consists of three fundamental steps.
Optical Initialization
A green laser excites the NV center, initializing its quantum state into a well-defined starting condition and 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. By adjusting microwave frequency and duration, the quantum state can be accurately manipulated.
Optical Readout
After manipulation, the NV center is excited again with laser light, producing red fluorescence whose intensity varies depending on the final quantum state. Analyzing these optical signals allows detection and measurement of surrounding physical changes, such as magnetic fields, temperature, and electric fields.
NV centers offer room-temperature operation and nanoscale sensing resolution, making them suitable for quantum sensing, biological imaging, and precision measurement without relying on cryogenic temperatures or complex vacuum systems. Beyond sensing, their quantum properties also position them as promising solid-state systems for quantum computing and quantum networking.
Competitive Advantages
Proprietary Advanced Color Center Engineering
Traditional domestic NV diamond suppliers are generally limited to producing basic medium- to high-density NV center samples, often facing challenges in NV center density control, spatial uniformity, and ODMR contrast performance. ViQium has independently established a complete production process covering diamond crystal growth, ion irradiation, and high-temperature annealing, offering medium- to high-density NV center diamond products (0.1–5 ppm) as well as ultra-high-density products (10–45 ppm), with key parameters comparable to leading international suppliers such as the E6 product series. The company supports flexible customization starting from a single piece, at pricing lower than imported alternatives.
Integrated End-to-End Delivery Capability
Many market suppliers focus primarily on material sales with limited expertise in downstream applications such as ODMR system integration, parameter optimization, and magnetic field calibration. ViQium's technical team combines diamond material engineering with quantum measurement technologies, establishing an integrated service chain covering diamond growth, NV center creation, characterization, and ODMR system integration—delivering customized material selection, testing solutions, competitive benchmarking, and experimental optimization recommendations.
Flexible Customization Platform
While traditional suppliers typically offer only fixed sizes and specific diamond orientations, ViQium provides a portfolio 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 High Purity Diamond, Single NV Diamond, Ensemble NV Diamond, Ultra-High-Density NV Diamond, Shallow NV Diamond, Nano-NV Diamond, NV Diamond Anvil, SiV Diamond, and Black phosphorus, complemented by Precision Instruments such as the Portable Magnetometer and NV Quantum Spin Spectrometer.
Single NV Diamond products, suited for quantum computing, networking, simulation, and single-molecule NMR, offer T₂ of 300–600 μs (Spin Echo) and NV density of 10–10,000 units/10⁴ μm². Ensemble NV Diamond, designed for high-sensitivity current, magnetic field, and temperature sensing, provides T₂ of 30–250 μs and NV density of 0.1–10 ppm. Ultra-High-Density NV Diamond, suited for quantum memory and room-temperature solid-state masers, delivers NV density of 10–45 ppm. High Purity Diamond features nitrogen content below 5 ppb, boron content below 1 ppb, and carbon-12 enrichment of 98.9%. Shallow NV Diamond, applied in wide-field current and magnetic imaging, offers NV depth control from 10–50 nm or 1–10 μm.
Customer Cases and Market Feedback
First-time users often struggle with selecting suitable NV diamond materials due to a lack of clear reference standards. ViQium addresses this through a comprehensive NV Diamond Selection Guide and online consultation, categorizing products by application requirement—magnetic field sensing, magnetic imaging, or temperature sensing—so customers avoid purchasing multiple samples for comparison.
Because leading international suppliers typically do not support small-volume customized orders, and other suppliers offering small batches often show gaps in NV concentration, uniformity, and coherence time, ViQium combines flexible small-batch customization with in-house fabrication, tailoring crystal orientation, NV concentration, sample dimensions, and microstructure processing to specific requirements.
For customers lacking integrated ODMR testing support, ViQium provides a combined solution of diamond samples, optical components, and system configuration guidance, covering the full ODMR workflow—optical alignment, signal acquisition, and magnetic field calibration—so customers can source both materials and testing solutions from one provider.
Target Industries and Customer Profiles
ViQium's NV center quantum diamond technology serves quantum precision measurement and advanced sensing across fundamental scientific research, industrial precision inspection, and extreme-environment detection, including semiconductor inspection, power metrology, geological exploration, and aerospace & defense. Research institutes and universities seek reproducible materials and accessible experimental platforms; advanced industrial inspection and precision manufacturing companies require system integration, long-term reliability, and scalable supply; aerospace and defense customers prioritize sensitive detection under wide temperature ranges and challenging electromagnetic environments, along with technical security and confidentiality.
By combining atomic-scale material precision with end-to-end technical support, ViQium offers a practical pathway for organizations seeking to move from conventional measurement methods toward high-sensitivity, non-invasive quantum sensing.
https://en.viqiumtech.com/
ViQium Technologies Co., Ltd.
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