Axicon lens element

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Axicon is conical shape lens used to transform laser beam into Bessel beam or ring. You can customize apex angle and other characteristics to build your desired conical lenses. What is an Axicon (Conical Lens)? An axicon (also known as a conical lens or sometimes - cone prism) is a specialized optical lens characterized by its conical shape. While traditional lenses have spherical (convex, concave) or cylindrical (convex, concave) curvature, Alien Photonics axicons have a cone-shaped surface. That surface allows to converge or diverge laser beam into a ring or a near-non-diffracting beam, depending on the configuration. This unique property arises from the axicon's ability to refract light rays at constant angles across its surface, leading to the formation of beams with highly specific spatial characteristics. What is the main function of the Axicon? Conical lens main function (purpose) is to effectively convert laser beam to ring-shaped beam or Bessel beam. a) Axicons for Bessel beam generation Axicons primary function is to generate Bessel beams, which are notable for their non-diffracting and self-healing properties. Such beams maintain their intensity profile and diameter over long distances, unlike conventional Gaussian beams, which spread out due to diffraction. b) Axicons for ring-shaped beam generation Additionally, Alien Photonics axicons can be used to create ring-shaped beams. These beams are useful in applications like optical trapping, microscopy, and laser drilling or cutting. The ability to produce these beams makes axicons invaluable in research and industrial settings where controlling light with high precision is necessary.