AX251-C 25.4 mm Dia. UVFS Plano-Convex Axicon Prism; 5 mm AR 1050-1700nm

The AX251-C 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 is made of UVFS material, specifically UVFS Mal-1965, which is known for its excellent optical properties. It features a plano-convex shape, meaning one side is flat while the other is curved. The convex side has a thickness of 5 mm at the edge, slightly increasing to 5.2 mm at the center, providing a slight curvature that is characteristic of Axicon Prisms.

The Axicon Prism has an apex angle (alpha) of 0.017453292519943295 radians, which is approximately 1 degree. This small angle contributes to the prism's ability to shape and collimate laser beams. The prism is coated with a broadband Anti-Reflective (AR) coating, specifically designed for the wavelength range of 1050-1700nm, which enhances its transmission capabilities within this spectrum.