This is a 40 x 65 mm 50:50 (R:T) Beamsplitter, specifically the BAE6506 model from Knight Optical. It is designed for use in the visible light spectrum, between 450 and 700nm. The beamsplitter is made of white float glass, a type of soda lime glass that is commonly used in optical applications due to its clarity and durability.
The beamsplitter has a thickness of 1.1mm, making it a thin lens. This thinness can be beneficial in certain applications where space is limited or weight is a concern. The beamsplitter's coating is Kni BV1 on the front and Kni AV2 on the back, which are proprietary coatings from Knight Optical. These coatings are designed to enhance the beamsplitter's performance in its intended wavelength range.
The beamsplitter's physical data indicates that it has a reflection of 0.5 and a transmission of 0.5. This 50:50 (R:T) ratio is common in beamsplitters, as it allows for an equal division of light between the reflected and transmitted paths. This can be useful in a variety of applications, such as interferometry, beam combining, or spatial filtering.
The beamsplitter is rectangular in shape, with a base shape that matches its physical dimensions. It is currently in stock and available for purchase through the Knight Optical website.