This is a 097-3125R-300 protected silver plano-concave spherical mirror, sourced from EKSMA Optics. The mirror has a diameter of 76.2 mm and a thickness of 12.7 mm at the edge. It is designed for use with a wavelength of 400nm and features a UVFS protected silver coating on the front surface, identified as 'eks 0025protsil 4000'.
The mirror's geometry is spherical, with a radius of curvature (R1) of -300 mm, resulting in a negative focal length. This concave mirror is intended to focus light to a point on the optical axis, located at a distance equal to the mirror's effective focal length (EFL) of -150 mm.
The mirror is made from UVFS material, identified as 'uvfs mal- 1965' in the item data. This material is suitable for use with ultraviolet light, making this mirror an ideal choice for applications involving UV light.
For more information, including pricing and availability, please refer to the vendor's website at https://eksmaoptics.com/optical-components/metallic-mirrors/protected-silver-mirrors/. The link has been verified and the mirror is currently in stock.