48-854 15 mm Dia. Calcium Fluoride Protective Flat Window; t=2 mm Uncoated

The 48-854 is a 15 mm diameter Calcium Fluoride (CaF2) protective flat window, with a thickness of 2 mm and no coating. This window is sourced from Edmund Optics, a reputable vendor known for its high-quality optical components.

As a window, this component is designed to protect optical systems from environmental factors such as dust, dirt, and moisture, while minimally affecting the light path. Its flat shape ensures a uniform light transmission, making it suitable for a wide range of applications.

The window is made of Calcium Fluoride, a material with a high transparency in the ultraviolet, visible, and near-infrared regions of the spectrum. This makes it an ideal choice for applications that require high transmission in these wavelength ranges. The material ID, "caf2 mal-1963", provides a unique identifier for this specific material variant.

The window's geometry is defined by a diameter of 15 mm and a thickness of 2 mm. The diameter is the overall size of the window, while the thickness refers to the distance between the two flat surfaces. This thickness is considered thin in the context of optical components, which helps to minimize optical aberrations.

The window is uncoated, meaning it does not have any additional layers applied to its surfaces. While coatings can enhance certain properties of optical components, such as increasing transmission or reducing reflections, an uncoated window can be advantageous in certain applications due to its simplicity and cost-effectiveness.

The window is designed to operate at a wavelength of 587.6 nm, which is in the yellow-orange part of the visible spectrum. This specific wavelength may be relevant for applications that require precise wavelength control.