20SD520ER.4 50.8 x 50.8 mm Borofloat 33 Economy Broadband Metallic Mirror; t=12.7mm Protected Gold 650-20000nm

The 20SD520ER.4 is a high-quality, rectangular metallic mirror, sourced from the reputable vendor MKS/Newport. This mirror, with dimensions of 50.8 x 50.8 mm, is designed for use in a wide range of optical applications, thanks to its broadband coating that covers the spectrum from 650 to 20000nm.

The mirror is made from Borofloat 33, a low-expansion, high-strength glass that offers excellent thermal stability and chemical resistance. This material makes the mirror suitable for use in harsh environments where other materials might fail. The mirror has a thickness of 12.7mm, providing rigidity and durability.

The mirror's coating is a new ER.4 coating, applied to the front surface. This coating is designed to enhance the mirror's reflectivity across the broadband spectrum, ensuring optimal performance in a variety of applications. The coating is protected, which increases the mirror's longevity and resistance to wear and tear.

The mirror is shaped as a thin lens, which can be beneficial in certain optical setups. The lens shape can help to focus or collimate light, depending on the specific requirements of your application.

For more information, including pricing and availability, please refer to the vendor's website at https://www.newport.com/p/20SD520ER.4. The website indicates that the mirror is currently in stock, ensuring quick delivery for your optical project needs.