An Axicon transforms a laser beam into a ring shape (a Bessel intensity profile).

The ring's thickness will be equivalent to the diffraction-limited-spot size (of the input laser beam).

An Axicon also images a point source into a line along the optical axis and increases the Depth Of Focus (DOF). Each diffractive Axicon product is defined by its ring propagation angle.

Typical applications include:

- Atomic traps

- Bessel-Like Beam Generation

- Generating plasma in linear accelerators

- Laser Corneal Surgery

- Optical Coherence Tomography (OCT)

- Laser Drilling/Optical Trepanning