The 34-821 is a dielectric mirror designed for use with Nd:YAG lasers, offering a 38.1mm diameter and a thickness of 6.35mm. This mirror is sourced from Edmund Optics, a reputable vendor in the optical industry, and is currently in stock with a valid weblink provided for easy access to additional information.
The mirror's primary function is to reflect light at a specific wavelength, in this case, 355nm. The dielectric coating on the front surface of the mirror ensures high reflectivity for this wavelength while minimizing absorption and transmission. This coating is identified as 'edm dcurv3482145aoi' in the item data.
The mirror's shape is defined as 'Thin Lens', suggesting that it may have some degree of focusing power, although this is not explicitly stated in the provided data. The base shape of the mirror is circular, making it suitable for a wide range of applications where a uniform beam profile is required.