This is the WQZ25002, a 25 mm diameter Z-cut quartz left-handed round window with a thickness of 2mm and no coating. Sourced from Knight Optical, this window is a flat, circular optical element that falls under the category of 'Window' and more specifically, the sub-type 'Flat Window'.
The window's geometry is defined by its 25 mm diameter and 2 mm thickness. The material of the window is quartz (SiO2), a common material in optical applications due to its excellent transparency and high mechanical strength. The wavelength for this window is 633 nanometers.
The window has a 'Thin Lens' shape, which means it has a very small curvature or is virtually flat. This makes it ideal for applications where a flat surface is required. The window is 'Left Handed', which refers to the orientation of the optic axis in relation to the crystallographic axes of the material.
The window is uncoated, meaning it does not have any additional layers applied to its surface to alter its optical properties. This can be beneficial in applications where the natural properties of the material are desired, or where cost is a concern.
The window is currently in stock and available for purchase on Knight Optical's website. For more information, you can visit the provided weblink.