WG42012 In Stock

The WG42012 by ThorLabs is a state-of-the-art UV fused silica broadband precision window that measures Ø2" in size and comes uncoated. It should be noted that because the WG42012 is uncoated, it has typical losses of about 4% per surface.

Crafted from high-quality UV-grade fused silica, the WG42012 is designed to excel in applications that require a greater amount of transmission deeper in the UV than its N-BK7 counterpart. This innovative material boasts a better homogeneity, index of refraction that is lower for a provided wavelength, and a lower coefficient of thermal expansion than N-BK7, providing superior performance and durability. Measuring 12.0 mm thick, the WG42012 is a reliable and efficient choice for a variety of precision applications. With an uncoated wavelength range of 185 nm - 2.1 μm, this window provides unparalleled performance and versatility.