WGE2544 25 mm Dia. Germanium Round Window; t=3mm AR 3-12µm

This optical window, model WGE2544, is a 25 mm diameter Germanium round window with a thickness of 3mm. It is sourced from Knight Optical, a reputable vendor known for its extensive catalog of high-quality optical components. The window features an Anti-Reflective (AR) coating on both the front and back surfaces, specifically designed for the 3-12µm wavelength range.

The window's geometry is defined by its 25mm diameter and 3mm thickness, making it suitable for various optical applications. The base shape is circular, which is a common choice due to its symmetry and ease of integration into optical systems. The window is designed in the shape of a thin lens, which suggests its use in applications where minimal optical distortion is required.

The material of the window is Germanium, specifically identified as "germanium burnett" in the item data. Germanium is a popular choice in optical systems due to its high refractive index and transparency in the infrared region of the spectrum. The AR coating on both surfaces further enhances the window's performance by reducing reflective losses, thereby improving transmission.

The window's coating, kni ge-ar-ar-3-12, is a broadband AR coating designed for the 3-12µm wavelength range. This coating is applied to both the front and back surfaces of the window, ensuring high transmission and low reflectance across the specified wavelength range.