This is a 25 x 25 mm rectangular Beam Splitter, specifically a Thin BS, sourced from the reputable optical components vendor, Edmund Optics. The item is currently in stock and detailed information can be found at https://www.edmundoptics.com/p/25-x-25mm-25r75t-ar-coated-plate-beamsplitter/45377/.
The Beam Splitter is made of soda lime ru clear material and has a thickness of 3mm. It is designed to operate within the wavelength range of 400-700nm, with a peak wavelength of 588nm. The front surface of the Beam Splitter is coated with edm 46-664, a coating that enhances its performance and durability.
The Beam Splitter is shaped as a Thin Lens, and its physical data indicates a beam splitting ratio of 25:75 (R:T), meaning it reflects 25% of the incident light and transmits 75%. This makes it suitable for applications that require a higher transmission rate.