This is a 091-3025F metallic mirror, specifically an enhanced silver mirror, sourced from EKSMA Optics. The mirror has a circular base shape with a diameter of 12.7 mm and a thickness of 3 mm, making it a thin lens type.
The mirror is made from UVFS material, identified as MAL-1965 in the vendor's catalog. It is designed to work optimally with a wavelength of 800 nm. The front surface of the mirror is coated with a specialized coating, referred to as 'eks enhsil600110045'. This coating enhances the mirror's reflective properties within the wavelength range of 600-1100 nm.
For more information about this product, including pricing and availability, you can refer to the vendor's website at https://eksmaoptics.com/optical-components/metallic-mirrors/enhanced-silver-mirrors/. The link has been verified and the product is currently in stock.