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In high-power laser and infrared (IR) systems, materials must handle extreme heat and harsh environments. Standard glass or sapphire often fail under these conditions. CVD (Chemical Vapor Deposition) diamond is a reliable solution because of its high thermal conductivity and chemical resistance.
We mainly provide two types of CVD diamond for optics: Polycrystalline and Single Crystal. Choosing the right one depends on your specific needs for size, precision, and budget.
Polycrystalline CVD diamond is the industry standard when you need large optical windows. Its strength lies in its scalability. We can produce this material in larger diameters, making it suitable for aerospace IR domes and industrial CO2 laser windows where durability and size are more important than perfect lattice structure.
For applications that need very low wavefront distortion and minimal light scatter, single crystal CVD diamond is the better choice. It has a uniform crystal lattice, which is essential for high-power laser systems and precision scientific research. While the size is limited compared to polycrystalline, its optical clarity is much higher.
Q: Which type of CVD diamond is better for infrared (IR) windows? A: If you need a large window, Polycrystalline CVD diamond is usually better. It offers excellent broadband transmission and can be manufactured in larger sizes to fit big apertures.
Q: Why is Single Crystal CVD diamond used in laser cavities? A: It has the lowest possible optical absorption and scatter. This prevents thermal lensing, which is a common problem in high-performance laser systems.
Q: How do I choose between them for my project? A: It is a balance between optical quality, size, and your budget. For large-scale industrial use, polycrystalline is often enough. For high-precision laboratory or quantum optics, single crystal is required. You can share your technical requirements with us, and we will give you an honest recommendation based on our production experience.
