This is a 092-0125FR-1000 25.4 mm Dia. N-BK7 Enhanced Silver Plano-Concave Spherical Mirror, a high-quality optical component sourced from EKSMA Optics. The mirror has a base shape of a circle with a diameter of 25.4 mm and a thickness edge of 6 mm, making it suitable for a wide range of optical applications.
The mirror's geometry is spherical, with a radius of curvature (R1) of -1000 mm, which results in an effective focal length (EFL) of -500 mm. This curvature and EFL make it a concave mirror, ideal for focusing or collimating light in various optical systems.
The mirror is made of N-BK7, a popular optical glass from Schott, known for its excellent optical properties and wide transmission range. This mirror, in particular, is designed to work within the wavelength range of 600-1100 nm, making it suitable for near-infrared applications.
The mirror's surface is coated with EKSMA's enhanced silver coating, specifically the eks enhsil600110045 coating. This coating provides high reflectivity across the specified wavelength range, enhancing the mirror's performance in its intended application.