This is a 095-3130R-2000 protected gold spherical plano-concave mirror, sourced from EKSMA Optics. The mirror has a diameter of 50.8 mm and a thickness of 10 mm at the edge. It is designed to operate at a wavelength of 900 nm and features a UVFS protected gold coating on the front surface, denoted as 'eks 0030protgold900'.
The mirror's geometry is spherical, with a radius of curvature (R1) of -2000 mm, resulting in a focal length (EFL) of -1000 mm. This curvature and the gold coating make it suitable for a wide range of applications, including but not limited to, laser systems, interferometry, and optical testing.
The mirror is available for purchase through the EKSMA Optics website, and the link provided indicates that it is currently in stock. For more detailed information about this product and its specifications, please refer to the vendor's website.