This is a 76.2 mm diameter metallic mirror from MKS/Newport, designed for broadband use with a protective gold coating. The mirror is made of borofloat33, a type of borosilicate glass known for its high thermal resistance and low thermal expansion coefficient. This makes it an excellent choice for applications that require stability over a wide temperature range.
The mirror features a New ER.4 coating on the front surface, which is designed to provide high reflectivity across a broad spectrum, from 650nm to 20000nm. This makes it suitable for a wide range of applications, including infrared and ultraviolet spectroscopy, beam shaping, and laser systems.
The mirror has a thickness of 14.7mm, which is thin enough to minimize weight and cost, yet thick enough to provide excellent rigidity and resistance to deformation. The mirror's shape is that of a thin lens, which helps to minimize spherical aberration and other optical distortions.
According to the vendor's website, this mirror is currently in stock and can be shipped immediately. For more information, including pricing and detailed specifications, please visit the product page at https://www.newport.com/p/30D20ER.4.