WQZ2501 25 mm Dia. Z-Cut Quartz Right Handed Round Window; t=1mm Uncoated

This is the WQZ2501, a 25 mm diameter Z-cut quartz right-handed round window with a thickness of 1 mm and no coating. Sourced from Knight Optical, this window is a flat, circular optical element designed for use in various applications.

The window is made of quartz (SiO2), a material known for its excellent optical properties, including high transparency and resistance to heat and chemicals. The Z-cut orientation of the quartz provides specific optical characteristics that may be beneficial in certain applications.

The window's geometry is defined by a diameter of 25 mm and a thickness of 1 mm, making it a thin lens. The term "thin lens" refers to an optical element where the thickness is much smaller than the diameter, which is the case here.

The window is uncoated, meaning it does not have any additional layers applied to its surface to alter its optical properties. This can be advantageous in certain applications where the natural properties of the quartz are desired.

The window is designed to work with a wavelength of 633 nm, although its performance may vary depending on the specific application and environmental conditions.