GH25-18U 25 x 25 x 6 mm Borofloat33 Reflective Holographic Grating; 1800 Grooves/mm Coated

The GH25-18U is a reflective holographic grating from Thorlabs, measuring 25 x 25 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 features 1800 grooves per millimeter, providing a high level of dispersion at 1.85.

The grating is coated with a front coating of tho gh13-18u, enhancing its reflective properties. The orientation vector of the grating is along the x-axis, making it ideal for specific applications. The grating order is -1, and it is designed to be used on the front side.

This grating is available from Thorlabs and is currently in stock. For more information, please refer to the vendor's website at https://www.thorlabs.com/thorproduct.cfm?partnumber=GH25-18U.