BF-W-25.4-3 25.4 mm Dia. BaF2 Flat Window; t=3mm Uncoated

The BF-W-25.4-3 is a flat window type optical element, sourced from Alkor Technologies, with a base shape of a circle and a diameter of 25.4 mm. This window is designed to be thin, with a thickness of 3 mm, making it suitable for applications where minimal interference is required.

The material used in this window is BaF2, also known as Barium Fluoride. This material is identified as 'baf2 cgdm' in the Material ID. BaF2 is a popular choice in optical applications due to its wide transparency range, extending from the ultraviolet to the infrared region. It has a high refractive index and a low dispersion, making it an excellent material for various optical components.

The window is uncoated, meaning it does not have any additional layers applied to its surface. This can be beneficial in certain applications where the natural properties of the material are desired, or where additional coatings may interfere with the optical path. However, it's important to note that uncoated surfaces can be more susceptible to environmental factors such as dust, moisture, and scratches.

The window is designed to work with a wavelength of 633 nm, making it suitable for a wide range of applications. It's shape is that of a thin lens, which can provide some focusing capabilities, although this is not the primary function of a window.

For more information, including pricing and availability, please refer to the vendor's website at http://www.alkor.net/BaF2_windows_catalog.html.