This is a 091-0230R+200 Protected Gold Spherical Plano-Convex Mirror, sourced from EKSMA Optics. The mirror has a circular base shape with a diameter of 12.7 mm and a thickness of 6 mm at the center. It is designed for use with a wavelength of 900 nm and features a spherical geometry with a radius of curvature (R1) of 200 mm.
The mirror is made of N-BK7 Schott, a popular optical glass due to its excellent optical properties, including high transmittance in the visible and near-infrared regions. The front surface of the mirror is coated with EKS 0030protgold900, a protected gold coating that provides high reflectivity in the near-infrared region.
The mirror's effective focal length (EFL) is 100 mm, making it suitable for various optical applications. The item data indicates that this product is in stock and available for immediate use. For more information, you can refer to the vendor's website provided in the item data.