Excellent IR Transmission: CZ silicon is optimal for MWIR (3-5 μm) applications, while FZ silicon is suitable for LWIR (8-12 μm) due to its reduced absorption at 9 μm.

High Thermal Conductivity: Silicon’s high thermal conductivity makes it suitable for high-power laser applications.

Low Density: With a density of 2.329 g/cm³, silicon is lighter than germanium (Ge) and zinc selenide (ZnSe), making it ideal for weight-sensitive designs.

Durability: Silicon windows are chemically and abrasion-resistant, making them durable and suitable for challenging environments.

High Hardness: Silicon is the hardest material that is transparent to light in the 1000-1600 nm range, providing excellent durability and scratch resistance.

Applications: Lasers, IR imaging, weight-sensitive designs, etc.