This is a 092-0130R-8000 25.4 mm Dia. N-BK7 Protected Gold Spherical Plano-Concave Mirror, designed for use at a wavelength of 900nm. The mirror is sourced from EKSMA Optics, a reputable vendor known for its high-quality optical components.
The mirror is a curved mirror of the concave type, featuring a base shape that is circular. The diameter of the mirror is 25.4mm, and it has a thickness edge of 6mm. The effective focal length (EFL) of the mirror is -4000, and its radius of curvature (R1) is -8000.
The mirror is made from N-BK7 Schott, a popular optical glass known for its excellent optical properties. The coating on the front surface of the mirror is EKS 0030protgold900, a protected gold coating that enhances the mirror's reflectivity.
This mirror is designed for use in a variety of optical systems, including lasers and interferometers. Its high-quality construction and precise specifications make it an ideal choice for applications that require precise optical control.
Please note that the link provided with the item data indicates that this mirror is in stock, and further information about it can be found on the EKSMA Optics website.