AX255-A 25.4 mm Dia. UVFS Plano-Convex Axicon Prism; 5 mm AR 350-700nm

The AX255-A is a 25.4 mm diameter Axicon Prism, part of Thorlabs' extensive catalog of optical elements. This Axicon Prism is a specialized optical component with a unique geometry that finds application in a variety of fields, including laser beam shaping and beam collimation.

The prism's base shape is circular, and it features a plano-convex geometry, meaning one side is flat while the other is curved. The convex side has an alpha angle of 0.08726646259971647 radians, or approximately 5 degrees, providing a focused beam when used in conjunction with a laser source.

The AX255-A is made from UVFS, a material with a refractive index suitable for use in the ultraviolet to near-infrared spectrum. The prism's thickness varies from 5 mm at the edge to 6.1 mm at the center, providing robustness and durability.

This Axicon Prism comes with an anti-reflective (AR) coating on the front surface. The AR coating is designed for the 350-700nm wavelength range, reducing losses due to reflection and improving transmission efficiency.