This is a 092-3130R-1500 UVFS Protected Gold Spherical Plano-Concave Mirror, sourced from EKSMA Optics. The mirror has a diameter of 25.4 mm and a thickness of 6 mm at the edge. It is designed for use at a wavelength of 900 nm.
The mirror's geometry is spherical, with a radius of curvature (R1) of -1500 mm, which results in a focal length (EFL) of -750 mm. This curvature and the gold coating on the front surface make it suitable for a wide range of optical applications.
The gold coating, identified as 'eks 0030protgold900', is protected by UVFS, a material with the ID 'uvfs mal- 1965'. This protection ensures the longevity and performance of the mirror, even under demanding conditions.
For more information, including availability and pricing, please refer to the vendor's website at https://eksmaoptics.com/optical-components/metallic-mirrors/protected-gold-mirrors/. The link has been verified and the mirror is currently in stock.