ZnSe | Infrared Crystal is a chemically inert, non-hygroscopic, and highly-pure material that is very effective in many optical applications due to its extremely low bulk losses, high resistance to thermal shock, and stability in virtually all environments. Its transmission range of 0.5 to 19µm and low energy-absorption make it useful for optical components in high-power laser windows and multispectral applications, displaying good imaging characteristics.