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Home >> Products >> Infrared Optics >> Infrared Windows >> Sapphire (Al2O3) Windows
Sapphire (Al2O3) Crystals Windows
● Extreme surface hardness and chemical resistance
● Transmits wavelength ranging from 0.2 to 5.5μm
 
Chemically, sapphire is single crystal aluminum oxide (Al2O3) and is useful in a transmission range from 0.2 - 5.5μm, it is suitable for MWIR 3-5μm thermal imaging applications. Sapphire Windows are made from single crystal sapphire, they are ideal for demanding applications because of their extreme surface hardness, high thermal conductivity, high dielectric constant and resistance to common chemical acids and alkalis. Sapphire is the second hardest crystal next to diamonds and, because of their structural strength, sapphire windows can be made much thinner than other common dielectric windows with improved transmittance.