This is a high-quality dielectric mirror from MKS/Newport, designed for use in a broad range of applications. The mirror boasts a 12.7 mm diameter and a thickness of 3.1 mm, making it suitable for various optical systems.
The mirror is made from Borofloat 33, a low-thermal-expansion glass with excellent optical properties. This material is known for its high damage threshold, making it ideal for use in high-power laser applications. The mirror's broadband coating, specified for the wavelength of 588 nm, provides high reflectivity across the 488-694 nm range.
The coating on the front surface is a new BD.1 AOI 0, ensuring high-quality performance and durability. The mirror's thin lens shape further enhances its optical properties, making it a versatile component in any optical system.
According to the vendor's website, this item is currently in stock, and you can find more information about it at https://www.newport.com/p/05D620BD.1.