The GR50-0310 is a rectangular Blazed Ruled Reflective Grating, manufactured by Thorlabs, with dimensions of 50 x 50 x 9.5 mm. This grating is designed for use in the near-infrared region of the spectrum, with a blaze wavelength of 1000 nm.
The grating features 300 grooves per millimeter, providing a high level of dispersion (3.3) and a blaze angle of 8.6 degrees. The orientation vector is along the x-axis (1, 0, 0), and the grating is designed to operate in the -1st order. The grating side is the front, and it is coated with a specialized coating, THo GR13-0310, which enhances its reflective properties.
The GR50-0310 is made of soda lime ru clear, a type of glass known for its durability and clarity. According to the vendor, Thorlabs, this item is currently in stock and available for purchase. Further information and specifications can be found on the Thorlabs website, using the provided weblink.