GH13-18U 12.7 x 12.7 x 6 mm Borofloat33 Reflective Holographic Grating; 1800 Grooves/mm Coated

The GH13-18U is a reflective holographic grating from Thorlabs, measuring 12.7 x 12.7 x 6 mm. This grating is made of Borofloat33, a borosilicate glass known for its high thermal resistance and low thermal expansion coefficient. The grating features 1800 grooves per millimeter, providing a high dispersion of 1.85.

The grating is coated with a specialized coating, referred to as "tho gh13-18u", on the front side. This coating enhances the grating's performance in specific wavelength ranges. The grating is designed to operate at a wavelength of 588 nm, making it suitable for applications that require precise wavelength control and dispersion.

The GH13-18U has a rectangular base shape with a width of 12.7 mm, a height of 12.7 mm, and a depth of 6 mm. The grating side is the front side, and the orientation vector is (1, 0, 0), indicating that the grooves are parallel to the y-axis. The grating has no inner or outer radius, meaning it is a flat grating.

The grating is available from Thorlabs and is currently in stock, according to the vendor's website. The product link provided in the item data leads to the product page on Thorlabs' website, where users can find more information, technical specifications, and purchasing options.