WL11050-C13 1in Dia. AR Coated; N-BK7 Broadband Precision Window; t=5 mm 700-1100nm

The WL11050-C13 is a high-quality, broadband precision window offered by Thorlabs. This window, designed for general-purpose use, is made from N-BK7, a popular glass type known for its excellent optical properties. The window has a diameter of 1 inch (25.4 mm) and a thickness of 5 mm, making it suitable for a wide range of optical applications.

The window features an anti-reflection (AR) coating on both the front and back surfaces. This coating, designated as tho c13arc70011000, is specifically designed to reduce reflection across the 700-1100 nm spectral range. This broadband coating enhances the window's transmission efficiency, making it an ideal choice for applications that require high light transmission, such as laser systems or imaging applications.

The window's shape is defined as a thin lens, indicating that it has been precisely ground and polished to ensure excellent optical quality. This makes the WL11050-C13 suitable for use in critical optical systems where high precision and low wavefront distortion are required.