Understanding NV Diamond for ODMR Measurement
Optically Detected Magnetic Resonance, commonly known as ODMR, has become one of the most practical routes to quantum-level sensing at room temperature. At the heart of every ODMR system lies a nitrogen-vacancy (NV) center, a quantum defect embedded within a diamond lattice that acts as an extremely small quantum sensor. Researchers and industrial engineers who need high-sensitivity, non-invasive measurement capabilities increasingly rely on NV diamond materials to overcome the performance limitations of conventional measurement approaches. Selecting the right NV diamond for ODMR measurement, and finding a supplier capable of supporting the full experimental workflow, is therefore a critical decision for any laboratory or production line.
How NV Center ODMR Works
The operating principle of an NV center consists of three fundamental steps. First, optical initialization uses a green laser to excite the NV center and prepare its quantum state into a well-defined starting condition. Second, quantum manipulation applies a precisely tuned microwave field to control the NV center's spin state by adjusting frequency and duration. Third, optical readout re-excites the NV center with laser light, producing red fluorescence whose intensity varies depending on the final quantum state. By analyzing this optical signal, researchers can extract information about surrounding physical changes, including magnetic fields, temperature, electric fields, and stress. Because NV centers operate at room temperature and offer nanoscale sensing resolution, they present a more practical pathway toward compact, scalable quantum technologies compared with sensing approaches that depend on cryogenic conditions or complex vacuum systems.
ViQium Technologies: A Dedicated NV Diamond Supplier for ODMR Applications
ViQium Technologies Co., Ltd., headquartered in Minhang District, Shanghai, China, was founded in 2025 with a clear strategic focus on the exploration, scalable fabrication, and industrial application of quantum diamonds and emerging two-dimensional phosphorus-based materials. The company's founding team brings academic backgrounds from several leading universities in China and more than eight years of dedicated research in advanced quantum materials, including NV center quantum diamonds and black phosphorus. This combination of quantum physics, materials science, and optical engineering expertise allows ViQium to bridge the gap between laboratory breakthroughs and industrial-scale implementation, providing global research institutions and high-end industrial partners with reliable quantum core materials and precision measurement solutions.
A Complete Production Process from Crystal Growth to ODMR Integration
ViQium has independently established a complete production process covering diamond crystal growth, ion irradiation, and high-temperature annealing. This vertically integrated approach allows the company to control every stage of NV diamond fabrication rather than relying solely on material sales. ViQium's technical team combines expertise in both diamond material engineering and quantum measurement technologies, having built an integrated service chain covering diamond growth, NV center creation, characterization, and ODMR system integration. Based on customer requirements, ViQium provides customized material selection, testing solutions, competitive benchmarking, and experimental optimization recommendations, delivering long-term technical support throughout the customer's research and development process.
Differentiated Advantages for ODMR Customers
Advanced Color Center Engineering
ViQium provides medium- to high-density NV center diamond products ranging from 0.1 to 5 ppm, as well as ultra-high-density NV center diamond products ranging from 10 to 45 ppm. These products achieve high ODMR contrast performance, with key parameters comparable to established international product series, while supporting flexible customization starting from a single piece at pricing more accessible than imported alternatives. This balance of high performance and flexible procurement is particularly valuable for quantum precision magnetometry and industrial non-destructive testing applications.
Integrated End-to-End Delivery
Rather than offering materials in isolation, ViQium delivers an integrated service chain spanning diamond growth, NV center creation, characterization, and ODMR system integration, including parameter optimization and magnetic field calibration support. This makes ViQium particularly suited for university research groups without prior NV center experimental experience, as well as companies developing NV-based quantum precision measurement technologies.
Flexible Customization Across Specifications
ViQium's product portfolio covers (111)-oriented high-density and ultra-high-density NV diamonds, shallow NV diamonds, nanodiamond powders, C12-enriched diamond materials, and single NV center diamonds, with customizable dimensions and NV center concentration. Standard products can be delivered within 28 days, while conventional customized products can be delivered within 45 days, supporting fundamental research, emerging quantum sensing development, and small-scale prototype development.
Product Portfolio Supporting ODMR Measurement
ViQium's Quantum Materials Series includes Single NV Diamond, with a T2 of 300–600 μs measured by Spin Echo, T2* of 1 μs measured by FID, and NV density of 10–10,000 units per 10⁴ μm², suitable for quantum computing, networking, simulation, high-resolution quantum sensing, and single-molecule NMR. Ensemble NV Diamond offers a T2 of 30–250 μs, T2* of 200–600 ns, and NV density of 0.1–10 ppm, well suited for high-sensitivity precision sensing of current, magnetic field, and temperature. Ultra-High-Density NV Diamond reaches NV densities of 10–45 ppm, supporting quantum memory and room-temperature solid-state masers. High Purity Diamond, with nitrogen content below 5 ppb, boron content below 1 ppb, and 98.9% carbon-12 enrichment, serves semiconductor and electronics applications as well as single and shallow NV-center fabrication. Shallow NV Diamond, featuring NV depths of 10–50 nm or 1–10 μm, supports wide-field current imaging, wide-field magnetic imaging, and ultrafast nonlinear photonic sensing. All products are supported by product customization and factory calibration and characterization data.
Who Relies on ViQium's NV Diamond Solutions
Research institutes and universities depend on reproducible, high-quality quantum materials to support fundamental physics validation, often facing challenges related to unstable experimental results. Advanced industrial inspection and precision manufacturing companies, including those in semiconductor inspection, power measurement, and geological exploration, require system integration, long-term reliability, and scalable supply capacity to move beyond conventional measurement limitations. Aerospace and defense customers require highly sensitive detection and stable performance across wide temperature ranges and challenging electromagnetic environments, placing emphasis on technical security and proven capabilities.
Solving Real Selection and Testing Challenges
ViQium addresses the common difficulty first-time users face when lacking clear reference standards for NV diamond selection by offering a comprehensive NV Diamond Selection Guide alongside professional online consultation, categorizing products by application such as magnetic field sensing, magnetic imaging, and temperature sensing. For customers needing small-batch customization without sacrificing performance, ViQium combines flexible small-batch production with in-house fabrication of crystal orientation, NV concentration, sample dimensions, and microstructure processing. For those needing integrated ODMR testing support, ViQium provides diamond samples, optical components, and system configuration guidance covering optical alignment, signal acquisition, and magnetic field calibration, allowing customers to obtain materials and testing solutions from a single provider.
A Global Service Network Built Around ODMR Success
Headquartered in Shanghai, ViQium supports a global service network covering the full journey from requirement alignment and solution design to sample validation, delivery, and application support. Batch-level control and traceability management ensure performance stability across material batches, while tailored technical training helps customers achieve effective material utilization and reliable experimental reproducibility. For organizations evaluating an NV diamond for ODMR measurement supplier, ViQium Technologies offers a technically grounded, application-focused path from material selection to successful deployment.
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ViQium Technologies Co., Ltd.
