Generation of high conical angle Bessel-Gauss beams with reflective axicons
Résumé
We report the generation of Bessel–Gauss beams of high conical angle, up to 35 deg, using reflective off-axis
axicons and a magnification optical system. We experimentally characterize the beams with three-dimensional
scans. The high precision of fabrication of the axicons in the vicinity of the axicon singularity allows us to generate
a beam with intensity distribution close to analytical description.