The 38-863 is a dielectric mirror designed for use with Nd:YAG lasers, offering a 6.35mm diameter and a thickness of 4mm. This mirror is sourced from Edmund Optics, a reputable vendor in the optical industry, and is currently in stock with a valid web link provided for easy access to additional information.
The mirror is designed to reflect light at a wavelength of 355nm, a common wavelength for Nd:YAG lasers. The coating on the front surface of the mirror is 'edm dcurv388630aoi', which is specifically designed for use with this type of laser. The mirror's geometry is that of a thin lens, and it is made from fused silica, identified as 'fused sil mal-1965' in the item data.
The mirror's shape is circular, and it has a curvature that allows it to function as a lens, focusing or diverging light as needed. The mirror's design allows for a 0-45° angle of incidence, making it versatile for use in a variety of applications.