AX72502-E3 25.4 mm Dia. ZnSe Plano-Convex Axicon Prism; 3.4 mm AR 7000-12000nm

The AX72502-E3 is a 25.4 mm diameter ZnSe Plano-Convex Axicon Prism with a 3.4 mm AR coating optimized for the 7000-12000nm wavelength range. This axicon prism, sourced from Thorlabs, is a specialized optical element with a unique geometry that focuses or collimates light at a single point, making it ideal for beam shaping applications.

The prism's base shape is circular, and it features a convex surface with a small angle (alpha) of 0.003490658503988659 radians. This angle, combined with the prism's diameter, determines the focusing properties of the axicon. The prism's thickness is uniform, measuring 3.4 mm at both the edge and the center, which contributes to its high optical quality.

The ZnSe (Zinc Selenide) material from which the prism is made is known for its excellent transparency in the infrared region, making it suitable for a wide range of applications in this spectral range. The prism's AR coating further enhances its performance by reducing reflection and increasing transmission in the specified wavelength range.