14APX-1.5-170-1 30 mm Dia. N-BK7 Standard Plano-Concave Axicon; t=8 mm Uncoated

The 14APX-1.5-170-1 is a 30 mm diameter N-BK7 Standard Plano-Concave Axicon, featuring a thickness of 8 mm and uncoated surfaces. This axicon, sourced from Standa, is a specialized optical element with a unique geometry that finds extensive applications in various fields, including beam shaping, laser beam collimation, and optical metrology.

The axicon's design incorporates a precise apex angle of approximately 2.967 degrees, which is crucial for its functionality. This apex angle, combined with the concave surface, allows the axicon to transform a Gaussian beam profile into a ring-shaped or "doughnut" mode beam. This transformation is particularly useful in applications where a uniform beam intensity distribution is required.

The N-BK7 material, a borosilicate crown glass, is known for its excellent optical properties, including high transparency across the visible spectrum and a low coefficient of thermal expansion. This makes the 14APX-1.5-170-1 suitable for use in environments with varying temperatures.

The uncoated surfaces of this axicon are as-ground, providing a cost-effective solution for applications where coating is not a necessity. However, for applications requiring higher transmission or specific reflection properties, coatings can be applied upon request.