This is a 098-0125R-3000 protected silver plano-concave spherical mirror, sourced from EKSMA Optics. The mirror has a diameter of 101.6 mm and a thickness of 15 mm at the edge. It is designed for use with a wavelength of 400 nm and features a spherical geometry with a radius of curvature (R1) of -3000 mm, resulting in an effective focal length (EFL) of -1500 mm.
The mirror is made of N-BK7 Schott glass, a popular material for optical components due to its excellent optical properties and wide transmission range. The front surface of the mirror is coated with EKS 0025protsil 4000, a protected silver coating that offers high reflectivity and durability.
This mirror is part of EKSMA Optics' range of metallic mirrors, which are known for their high-quality coatings and precise geometries. The mirror is currently in stock and more information can be found on the EKSMA Optics website.