The FSW13AR.10 is a 15 mm diameter Flat Window, part of the Window product category, offered by MKS/Newport. This particular model is designed for use in the ultraviolet-visible range, specifically between 250 and 450 nanometers.
The window is fabricated from UVFS, a material with the Material ID "uvfs mal- 1965". This material is known for its transparency in the UV-VIS range, making it ideal for applications that require the transmission of light in this spectrum.
The window features a thickness of 2 mm, providing a good balance between durability and light transmission. It is coated with a new AR-10 coating on both the front and back surfaces, which further enhances its performance in the UV-VIS range by reducing reflective losses.
The FSW13AR.10 is available in a Thin Lens shape, and its circular geometry with a 15 mm diameter makes it suitable for a wide range of optical systems. According to the vendor, the item is currently in stock, and more information can be found on the product's webpage.