WG11010-B Dia:1in N-BK7 Broadband Precision Window; t=1 mm ARC 650-1050nm

The WG11010-B is a precision window from Thorlabs, designed with a base shape of a flat, circular window. It boasts a diameter of 1 inch (25.4 mm) and a thickness of 1 mm, making it a slim yet robust option for various optical applications.

This window is crafted from N-BK7, a popular glass type in the optical industry, known for its excellent optical properties and versatility. The window is designed to work optimally with a wavelength of 633 nm, although it can accommodate a broader spectrum due to its broadband anti-reflection coating.

The coating on both the front and back surfaces of the window is a broadband anti-reflection coating, specifically designed for the wavelength range of 650-1050 nm. This coating significantly reduces surface reflections, thereby enhancing the overall transmission of light through the window.

The window's shape is that of a thin lens, which can be beneficial in certain applications where a lens-like element is required. However, it's important to note that this window does not have any focusing or diverging properties like a typical lens.