IR Beamsplitter, Calcium Fluoride, 38.1 mm, 50R/50T Ratio

The CAFBS11 IR Beamsplitter is a 38.1 mm diameter, 3.00 mm thick Calcium Fluoride beamsplitter with 50/50 reflection/transmission ratio optimized for 45° angle of incidence. This beamsplitter is designed for broadband infrared applications covering spectral range from 2 to 8 μm. The back surface of the beamsplitter has a 3 arc minutes wedge to reduce undesired interference effects caused by the back reflections from both surfaces of the optics.