Spectral Systems offers the most comprehensive selection of windows for IR sampling. Our windows are the highest quality in the industry providing exceptional spectral results. When combined with our broad range of options for materials, sizes, coatings and wedged or parallel surfaces, Spectral Systems is your one stop shop for all your application needs.
Calcium fluoride (CaF2) is an excellent material choice for many NIR applications. It has near zero solubility in water, no hydroxyl absorption and is relatively low cost. CaF2 is limited in the mid-IR spectral range to about 900 cm-1 depending upon thickness of the windows.View Product