The OPSQ-20S05-4-5 is a high-quality optical window from OptoSigma, a leading vendor in the optical industry. This specific model is a 20 x 20 mm square window, designed for use in a variety of optical systems.
The window is made from UVFS, a material with the material ID "uvfs mal- 1965". UVFS is a type of synthetic fused silica, known for its excellent optical properties and durability. This material is particularly suitable for applications that require high transmission in the ultraviolet, visible, and near-infrared regions of the spectrum.
The window has a thickness of 5 mm, providing a good balance between strength and light transmission. It is designed in the flat window style, which means it does not have any curvature. This makes it ideal for use in systems where a flat surface is required.
The window is uncoated, meaning it does not have any anti-reflective or other coatings. This can be beneficial in applications where such coatings are not required or desirable. However, it should be noted that uncoated windows can have higher reflectivity than coated windows, which can affect the performance of the optical system.
The window is currently in stock and available for purchase. More information, including pricing and availability, can be found on the OptoSigma website.