095-0130R-4000 50.8 mm Dia. N-BK7 Protected Gold Spherical Plano-Concave Mirror; t=10mm 900nm

This is a 095-0130R-4000 protected gold spherical plano-concave mirror, sourced from EKSMA Optics. The mirror has a diameter of 50.8 mm and a thickness of 10 mm at the edge. It is designed for use at a wavelength of 900 nm.

The mirror's curvature is spherical, with a radius of curvature (R1) of -4000 mm, resulting in a focal length (EFL) of -2000 mm. This negative focal length indicates that the mirror is concave, focusing light to a point on the same side of the mirror as the light source.

The mirror is made of N-BK7 glass, a common and versatile optical material with a high refractive index and low dispersion. This makes it suitable for a wide range of applications, including lasers, interferometers, and beam shaping.

The mirror is coated with a protected gold coating, denoted as 'eks 0030protgold900'. This coating provides high reflectivity in the infrared region of the spectrum, making it ideal for use in applications such as thermal imaging and night vision. The 'protected' aspect of the coating refers to a layer of transparent material that is applied over the gold to protect it from oxidation and other forms of environmental damage.

For more information about this product, including pricing and availability, please visit the EKSMA Optics website using the provided weblink.