This is the G340745000, a high-power laser mirror from Qioptiq Photonics, designed with a 50 mm diameter and a thickness of 10mm. The mirror is made of UVFS material, specifically identified as UVFS MAL-1965, which is well-suited for applications in the ultraviolet spectrum, particularly at the 355nm wavelength.
The mirror's coating is a crucial aspect of its functionality. The front surface is coated with a high-reflectivity dielectric coating, specifically the Qio HRLDLHSUV3513554 coating. This coating is designed to optimize reflectivity for the 351-355nm range, making it ideal for high-power laser applications within this spectrum.
The mirror's geometry is that of a thin lens, and it is available in a circular shape. This mirror is currently in stock and can be purchased directly from the Qioptiq Photonics website. For more detailed information, you can refer to the product's webpage at https://www.qioptiq-shop.com/en/Precision-Optics/Mirrors/Dielectric-Mirrors/Dielectric-Coated-Plane-Mirrors-DLHS-UV-351-355-nm.html.