The GH13-24V is a reflective holographic grating from Thorlabs, measuring 12.7 x 12.7 x 6 mm. This grating is made from Borofloat33, a type of glass known for its high thermal shock resistance and low thermal expansion coefficient. The grating has 2400 grooves per millimeter, making it suitable for applications that require high dispersion.
The GH13-24V has a dispersion of 3.03, which refers to the ability of the grating to separate different wavelengths of light. This grating is coated on the front side with a specialized coating (tho gh13-24v) that enhances its reflective properties. The grating side is the front side, and the order is -1.
This grating is available from Thorlabs and is currently in stock. For more information, you can visit the product page at https://www.thorlabs.com/thorproduct.cfm?partnumber=GH13-24V.