Infrared optical window ZLY375

flat circularsapphire

Sapphire is slightly birefringent. The high-hardness Sapphire Crystal has a refractive index of 1.75 and grows to a random orientation, so the universal infrared window is usually cut in a random manner. For specific applications with birefringence problems, the selection directions are: C-plane, A-plane and R-plane. Zoolied Inc. offers in a variety of Sapphire Optics , such as Optical Sapphire rings, Step Glass, Sapphire Rod Lens and sapphire tubes. Multiple anti-reflection coating options are available for the Ultraviolet (UV), visible, or Infrared (IR). Looking for ideal optical sapphire Manufacturer & supplier? We have a wide selection at great prices to help you get creative. All the Sapphire Glass are quality guaranteed. Zoolied China Origin Factory of Sapphire Optics. Sapphire is a single crystal form of Al2O3, with a favorable combination of chemical, mechanical and optical properties. Sapphire is resistant to attack by strong acids, enabling use in a corrosive atmosphere. It is resistant to scratch and abrasion with very high Knoop hardness of 1800 parallel to the optic axis (C-axis), 2200 perpendicular to the optic axis. Sapphire's hardness allows it to be made into much thinner optics than other substrates. Sapphire is chemically inert and insoluble to water, common acids, and alkalis for temperatures up to 1,000 °C. Sapphire is transparent in the UV to the IR (150?nm - 4.5μm). It is commonly used in IR laser systems and has an ordinary refractive index of 1.754 and an extraordinary refractive index of 1.747 at 1.064 μm. Features Extreme Surface Hardness Chemical Resistance Transmits Wavelengths Ranging From UV to Mid-Infrared