The DMLP1800R is a rectangular dichroic mirror, measuring 36 mm in width and 25 mm in height, with a thickness of 1 mm. Manufactured by Thorlabs, this mirror is designed for longpass applications, featuring an 1800 nm cut-on wavelength.
This mirror is made of UVFS material, identified as MAL-1965, and has a thin lens shape. The front surface of the mirror is coated with a specialized coating, denoted as THo DMLP1800, which is specifically designed for the mirror's longpass functionality.
The DMLP1800R is currently in stock and available for purchase through the Thorlabs website, as indicated by its valid weblink status. For more detailed information, including technical specifications and purchasing options, users are encouraged to visit the provided weblink.