40Z20ER.4 101.6 mm Dia. Zerodur Broadband Metallic Mirror; t=17.7mm Protected Gold 650-20000nm

This is a 40Z20ER.4 metallic mirror, boasting a broadband coating suitable for a wide range of wavelengths, from 650nm to 20000nm. The mirror is sourced from the reputable vendor MKS/Newport, and its product page can be accessed at https://www.newport.com/p/40Z20ER.4. The mirror's current status is in stock, as indicated by the 'weblink status' field.

The mirror is circular in shape, with a diameter of 101.6mm and a thickness of 17.7mm. It is made of Zerodur, a material well-known for its excellent thermal stability and low coefficient of thermal expansion, making it an ideal choice for precision optical applications. The material is identified as 'zerodur schott' in the item data.

The mirror's coating is a new ER.4 coating, applied to the front surface. This coating enhances the mirror's reflectivity and durability, ensuring optimal performance over time. The mirror's shape is that of a thin lens, further contributing to its versatility in various optical systems.