Sinoptix’s Optical Germanium Components are engineered for exceptional performance in infrared (IR) applications, particularly in the 8–14 µm thermal range. Germanium (Ge), a metalloid with a high refractive index (~4.0), provides outstanding IR transmission (1.8–23 µm), low optical dispersion, and minimal chromatic aberration. These properties make it an ideal material for use in thermal imaging, night vision, and IR sensing systems.

Available as windows, lenses, aspheres, and wafers, our Germanium components are manufactured to exacting tolerances, with optional Diamond-Like Carbon (DLC) or Anti-Reflection (AR) coatings to enhance durability and improve transmittance. The DLC coating mimics diamond’s hardness while reducing surface reflection and protecting against mechanical damage.

Although not transparent in the visible spectrum—a beneficial feature in some IR-only applications—Germanium is sensitive to high temperatures, with degradation occurring above 100°C. It is also more brittle than silicon, requiring careful handling during integration.

Each component is customizable with precision polishing and machining to meet demanding optical and mechanical requirements, making Sinoptix Germanium optics an optimal choice for high-value IR optical systems.