This is a 9 x 9 mm 50:50 (R:T) Beamsplitter, specifically the BAE0906 model from Knight Optical. It is a standard plate beamsplitter, designed for use in the visible light spectrum, specifically between 450 and 700nm. The beamsplitter has a thickness of 1.1mm, making it a thin BS type.
The beamsplitter is made of soda lime ru clear material, a common choice for optical elements due to its clarity and durability. The front surface of the beamsplitter is coated with kni bv1, while the back surface is coated with kni av2. These coatings are designed to enhance the beamsplitter's performance and durability.
The beamsplitter's physical data indicates that it has a reflection of 0.5 on the beamsplitter surface and a transmission of 0.5 on the opposite surface. This 50:50 (R:T) ratio is common in beamsplitters and is ideal for many applications.
The beamsplitter is rectangular in shape, with a base shape that allows for easy integration into optical systems. It is currently in stock and available for purchase through the Knight Optical website.