This is a 43-742 reflective diffraction grating, sourced from the reputable vendor, Edmund Optics. The grating is characterized by its square shape, with dimensions of 12.7 mm in width and length, and a thickness of 6 mm. It is made of soda lime float glass, a common material in optical applications due to its excellent clarity and durability.
The grating features 600 grooves per millimeter, with a blaze wavelength of 500 nm. This results in a blaze angle of 8.62 degrees, which is the angle at which the grating most efficiently diffracts light of the blaze wavelength. The grating is designed to operate in the first order, meaning it diffracts light at an angle that is approximately equal to the angle of incidence, but in the opposite direction.
The grating's coating is bare aluminum, which provides high reflectivity across a wide range of wavelengths. This makes it suitable for a variety of applications, including spectroscopy and beam steering. The grating is currently in stock and available for immediate purchase. For more information, please refer to the vendor's website.