This item is a flat window, specifically designed for optical applications. It is sourced from Alkor Technologies, a reputable vendor known for their high-quality optical components. The window is made of Calcium Fluoride (CaF2), a material with the Mal-1963 designation, and has a diameter of 49 mm and a thickness of 6 mm.
The CaF2 material is well-suited for optical applications due to its excellent transparency in the ultraviolet, visible, and near-infrared regions of the spectrum. It also has a low refractive index and a relatively high Abbe number, making it a popular choice for a variety of optical systems.
The window is designed in the shape of a thin lens, which can be beneficial in certain optical configurations. However, it's important to note that this window does not have any coatings applied to it. This means that it will not have any specific spectral characteristics or additional protection against environmental factors.
For more detailed information about this item, including its availability and pricing, please refer to the vendor's website at http://www.alkor.net/CaF2_windows.html.