20Z20ER.4 50.8 mm Dia. Zerodur Broadband Metallic Mirror; t=12.7mm Protected Gold 650-20000nm

This is the 20Z20ER.4 metallic mirror, a high-quality optical component manufactured by MKS/Newport. The mirror boasts a broadband coating, suitable for a wide range of wavelengths from 650nm to 20000nm, making it a versatile choice for various optical applications.

The mirror is circular in shape, with a diameter of 50.8mm and a thickness of 12.7mm. The base material is Zerodur, a special glass-ceramic from Schott, renowned for its excellent thermal stability and low thermal expansion coefficient. This makes the mirror ideal for applications requiring high precision and stability over a wide temperature range.

The mirror's coating is a protected gold coating, specifically ER.4. This coating ensures high reflectivity across the specified wavelength range, while also providing excellent durability and resistance to environmental factors. The mirror is designed in a thin lens shape, optimizing its performance in optical systems.

For more information, detailed specifications, and purchasing, please refer to the vendor's website at https://www.newport.com/p/20Z20ER.4. The link is currently valid and indicates that the product is in stock, ensuring quick delivery upon order.