2026 Product Portfolio Expansion Announcement

Advancing Diamond Solutions for Optical, Quantum, Thermal, and Electronic Systems

Great Lakes Crystal Technologies (GLCT) is formally expanding and refining our diamond substrate portfolio to serve better commercial technical leaders, program managers, and R&D organizations developing next-generation photonic, quantum, RF, and power electronics systems.

Our updated product categories reflect increased specialization, tighter in-house capability control, and expanded customization scopes to meet the demands of high-power, high-frequency, and extreme-environment applications.

 

Advanced Prototyping & Co-Development
From diamond substrates to functional diamond devices

Beyond material supply, we partner with leading manufacturers and research teams to transform advanced diamond substrates into fully functional prototypes.

With over a century of combined expertise in diamond growth, processing, and device integration, we support:

• Thermal management system development
• High-frequency electronic device prototyping
• NV-diamond quantum sensor integration
• Novel device architectures in non-traditional ecosystems

From early-stage feasibility through product-ready implementation, we collaborate closely with engineers and scientists to co-develop solutions where diamond enables improved or new functionality.

If you have a vision that depends on diamonds, we are prepared to build that roadmap with you.

 

Thermal-Grade Products & Devices
For advanced thermal management in power-dense systems

Our thermal-grade diamond products & devices are designed to maximize heat spreading and mechanical stability in high-power and high-frequency environments.

They enhance performance and reliability in:

• Power electronics
• RF and microwave systems
• Wide-bandgap semiconductor platforms
• High-density integrated chips

With exceptional thermal conductivity and structural robustness, these substrates improve efficiency, lifetime, and system reliability in next-generation electronics systems.

Available as: single-crystal plates with customizable sizes, finishes, metallization, and advanced integration features.

 

Optical-Grade Substrates
For photonics, high-power laser systems, and precision optics

Our optical-grade diamond substrates are engineered for exceptional purity, crystallinity, and strain uniformity. Grown under tightly controlled conditions, they exhibit ultra-low defect densities and outstanding optical transmission across a broad spectral range.

These substrates are optimized for:

• High-power lasers
• Precision optical components
• Radiation-tolerant photonics
• Advanced materials and applications research

With superior thermal conductivity and low optical absorption, they enable stable operation at high power densities in both R&D and production environments.

Available as: low-stress single-crystal plates with customizable dimensions, geometries, and surface finishes.

 

Quantum-Grade Substrates
For NV-based sensing, communication, and quantum information science

Our quantum-grade diamonds are engineered with controlled nitrogen-vacancy (NV) center incorporation to deliver exceptional spin coherence, low strain and ultra-high strain uniformity, and minimized parasitic defect densities.

They provide a reliable materials platform for:

• High-sensitivity magnetometry and quantum sensing
• Quantum communication architectures
• Quantum information and computing research
• Scalable quantum device development

Through controlled NV concentration profiles, isotopic purification, and reduced magnetic and electric noise, these substrates support both fundamental research and deployable quantum technologies.

Available as: isotopically purified single-crystal substrates, bulk NV materials, and NV epilayers on undoped substrates –  with customizable dimensions and surface finishes.

 

Electronics-Grade Substrates
For ultra-high performance, high-speed, and high-power electronics

Our electronics-grade diamond substrates combine high purity, low defect density, and superior thermal and electrical performance to support demanding electronic environments.

They are well-suited for:

• RF and microwave electronics
• High-voltage power devices
• Ultra-wide-bandgap semiconductor research
• Scalable, high-performance electronics systems

Designed to manage extreme power densities and elevated operating temperatures, these substrates provide a durable and reliable material foundation for advanced device architectures.

Available as: chemically-mechanically polished (CMP), low-stress single-crystal substrates with customizable dimensions.

 

Doped Diamond Substrates
For conductive platforms in extreme environments

Our boron- and phosphorus-doped diamond substrates are precision-engineered to deliver controlled electrical conductivity while preserving diamond’s intrinsic thermal and mechanical advantages.

Ideal for:

• High-power electronics
• Solid-state radiation detectors
• Electrochemical and sensing platforms
• Extreme temperature and radiation environments

These substrates combine stable conductivity, efficient heat dissipation, and long-term reliability for next-generation electronics and detector applications.

Available as: low-stress single-crystal substrates with customizable dopant concentrations, dimensions, and surface finishes.

 

Engage with Our Technical Team

If your 2026 roadmap includes high-power photonics, quantum systems, advanced RF electronics, or ultra-wide-bandgap platforms, we invite you to schedule a technical discussion with our team.

 

Start a technical discussion through our website to explore how diamond substrates can strengthen performance, reliability, and scalability in your next-generation applications.