MgF2 / LiF window

ZnS windows offer reliable transmission from the visible to long-wave infrared spectrum, from 0.4 μm to 14 μm. Available in standard and CVD grades, ZnS provides excellent durability and environmental stability for demanding applications. CVD ZnS delivers superior transmission in the 8–12 μm atmospheric window and is the preferred choice for thermal imaging and defense optics.

Key advantages include broad spectral coverage, high laser damage threshold, and excellent thermal shock resistance. ZnS windows are widely used in thermal imaging systems, CO₂ laser optics, defense and security optics, medical diagnostics, and environmental monitoring.

At Spectro Optics, we supply high-quality ZnS windows in standard and CVD grades, with custom coatings available to optimize performance for your specific application.