This is a 097-0125R-2000 protected silver plano-concave spherical mirror, sourced from EKSMA Optics. The mirror has a diameter of 76.2 mm and a thickness of 12.7 mm at the edge. It is designed for use at a wavelength of 400 nm.
The mirror's base shape is circular, and it features a spherical geometry with a radius of curvature (R1) of -2000 mm. This results in a relatively long effective focal length (EFL) of -1000 mm, making it suitable for applications that require a focused beam over a longer distance.
The mirror is made of N-BK7 glass, a popular material in optical systems due to its excellent optical properties and wide transparency 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 available in stock and can be purchased directly from the EKSMA Optics website. For more information, please refer to the provided weblink.