IR Optical Materials
Explore our comprehensive range of infrared optical materials for thermal imaging, CO₂ laser, and spectroscopy applications.
Calcium Fluoride (CaF2)
Calcium Fluoride (CaF2) is a low-dispersion optical crystal with exceptional transmission from deep ultraviolet (UV) through mid-infrared (MIR). With transmission from 0.13 to 9 μm and very low refractive index, CaF2 is ideal for broadband optical systems, laser optics, and applications requiring minimal chromatic aberration.
CVD ZnSe
Chemical Vapor Deposition Zinc Selenide (CVD ZnSe) is the premier infrared optical material for high-power CO2 laser systems and thermal imaging applications. With exceptional transmission from 0.5 to 20 μm and extremely low absorption coefficient, CVD ZnSe is the industry standard for CO2 laser optics at 10.6 μm.
Germanium (Ge)
Germanium is a high-refractive-index semiconductor material extensively used in long-wave infrared (LWIR) imaging systems. With excellent transmission from 2 to 14 μm and a refractive index of approximately 4.0, Germanium is ideal for thermal imaging lenses, infrared windows, and optical systems requiring minimal chromatic aberration.
Silicon (Si)
Silicon is a durable, lightweight semiconductor material widely used in near-infrared (NIR) to mid-wave infrared (MWIR) optical applications. With transmission from 1.2 to 7 μm and excellent mechanical properties, Silicon is ideal for infrared windows, lenses, and optical systems requiring rugged performance at reduced weight.
Zinc Sulfide (ZnS)
Zinc Sulfide (ZnS) is a versatile broadband infrared material available in two forms: standard ZnS for visible to infrared applications, and Cleartran® (water-clear ZnS) for multispectral optics. With transmission from visible through 12 μm, ZnS is ideal for applications requiring both visible and infrared performance.
ZnSe (Standard)
Standard Zinc Selenide (ZnSe) is a high-quality infrared optical material with excellent transmission from 0.5 to 20 μm. Unlike CVD ZnSe, standard ZnSe is produced through alternative methods and offers a cost-effective solution for many infrared applications not requiring the ultra-low absorption of CVD-grade material.
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Our technical team can help you choose the right IR optical material for your specific application.