This is a 10Z20DM.5 Dielectric Mirror, manufactured by MKS/Newport, with a diameter of 25.4 mm and a thickness of 6 mm. The mirror is made of Zerodur, a material renowned for its excellent thermal stability and low thermal expansion coefficient, making it an ideal choice for high-precision optical applications.
The mirror is designed for use with a wavelength of 505 nm, specifically in the visible light spectrum. It features a front coating of New DM.5 AOI 0, which is a dielectric coating that enhances its reflectivity and durability. The mirror's thin lens shape further adds to its versatility, allowing it to be used in a wide range of optical systems.
According to the vendor's website, this item is currently in stock. For more detailed information, you can refer to the provided weblink: https://www.newport.com/p/10Z20DM.5.