This is a 33067FL01-310H Reflective Grating from MKS/Newport, a leading vendor in the optical industry. The grating, which is rectangular in shape, measures 25 x 50 x 6 mm and is made of soda lime ru clear float glass.
The grating features a holographic diffraction grating with 1800 grooves per millimeter, designed to operate at a wavelength of 588 nm. The front surface of the grating is coated with a specific coating, nwr 53-310h-5469-1, which enhances its performance and durability.
The grating's physical data includes a blaze wavelength of 300 nm, an orientation vector of (1, 0, 0), and it operates in the first order. The grating side is the front side. The item is currently in stock and available for purchase, as indicated by its valid weblink status.
For more detailed information, you can refer to the weblink provided: https://www.newport.com/p/33067FL01-310H