This is a 14EAM-1-500 25.4 mm Dia. UVFS Plano-Concave Mirror, a high-quality optical component sourced from Standa. The mirror is designed with a base shape of a circle, featuring a diameter of 25.4 mm and a thickness of 6 mm. The mirror's geometry is spherical, with a radius of curvature (R1) of -500 mm, resulting in a focal length (EFL) of -250 mm.
The mirror is made from UVFS material with the ID UVFS Mal-1965, specifically designed for use in the ultraviolet region of the spectrum, between 250 and 600 nm. The front surface of the mirror is coated with UV Enhanced Aluminum, denoted as 'sta enh al', providing excellent reflectivity within the specified wavelength range.
This mirror is available from Standa and is currently in stock. For more information, you can refer to the vendor's website at http://www.standaphotonics.com/metallic-coated-optics/.