Optical Grade Diamond Plates
High-quality optical grade CVD diamond plates synthesized for extreme laser power optics, broadband infrared windows, X-ray beamlines, and biomedical spectroscopy systems.
Why Do Optical Grade Diamonds Matter?
Lab-grown chemical vapor deposition (CVD) optical grade diamonds represent the pinnacle of optical engineering. They possess an extremely broad optical transmission band—stretching continuously from the ultraviolet region (250 nm) through the visible spectrum into the deep infrared (25 µm).
Coupled with diamond's highest-in-nature thermal conductivity and high laser damage threshold, optical grade diamond plates withstand multi-kilowatt laser beams without thermal lensing, distortion, or optical cracking.
Optical Material Properties
Optical grade diamonds feature minimal lattice strain, nitrogen levels under 1 ppm, and high optical homogeneity.
Broadband Transmittance (~70%)
Optical grade diamond plates show exceptional optical transmission (~70% un-coated) across UV (250 nm), visible, near-IR, and far-IR (up to 25 µm). Anti-reflective (AR) coatings further boost transmission to > 98%.
Precision Optical Behavior (n = 2.38)
Featuring a refractive index of approximately 2.38 and an ultra-low absorption coefficient, optical grade diamond plates minimize signal loss and wavefront distortion in high-power industrial laser systems.
Nanomine Quality Engineering
At Nanomine Techno Labs, optical grade diamond plates are carefully synthesized via MPCVD to meet the most rigorous photonics and industrial standards. Our windows deliver supreme optical clarity, low birefringence, and high laser damage threshold.
Super-polished with RMS surface roughness values below 5 to 15 nanometers, our optical plates minimize light scattering and ensure consistent transmission for high-power CO₂ lasers, EUV optics, and synchrotron X-ray beamlines.
Frequently Asked Questions
Everything you need to know about optical grade CVD diamond windows and technical specifications.
Optical grade CVD diamonds are high-purity synthetic diamonds synthesized in microwave plasma chambers, renowned for their wide spectral transmittance, high refractive index (2.38), and high laser damage threshold.
Our single crystal optical diamond plates are grown in the preferred {100} crystal orientation with supreme optical clarity, polished to sub-nanometer flatness on both surfaces to eliminate optical distortion and beam scattering.
Key applications include high-power laser windows (CO₂ and fiber lasers), FTIR infrared spectroscopy windows, X-ray beamline monochromators, microwave plasma windows, and biomedical sensor optics.
Common dimensions include round wafers (3mm Φ, 5mm Φ, 10mm Φ, 12mm Φ) and square windows (3x3mm, 5x5mm, 10x10mm, 12x12mm), with custom diameters and thicknesses manufactured to order.
Single crystal diamond plates consist of a single continuous crystal lattice with zero grain boundaries for highest optical purity. Polycrystalline optical plates are composed of multiple fused micro-crystals, ideal for larger aperture clear optical windows.
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