The GH25-36U is a reflective holographic grating from Thorlabs, designed with a rectangular base shape and a size of 25 x 25 x 6 mm. This grating is crafted from borofloat33, a material known for its excellent thermal stability and chemical resistance.
The grating features a high groove density of 3600 grooves per millimeter, which contributes to its high dispersion of 4. The coating on the front side of the grating is THo GH13-36U, which enhances its reflective properties.
The grating is designed to operate at a wavelength of 588 nm, and it has an order of -1. The orientation vector of the grating is (1, 0, 0), meaning it is oriented in the x-direction. The grating side is the front side, where the coating is applied.
This grating is available from Thorlabs and is currently in stock. For more information, you can refer to the vendor's website through the provided weblink.