Published August 6, 2018 | Version v1
Journal article Open

Generation of high conical angle Bessel–Gauss beams with reflective axicons

Authors/Creators

  • 1. Laboratoire Kastler Brossel, Sorbonne Université, CNRS
  • 2. FEMTO-ST/ CNRS and University of Franche Comte
  • 3. CAILabs,France
  • 4. CAILabs, France

Description

We report the generation of Bessel-Gauss beams of high conical angle, up to 35 degrees, 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. 

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Additional details

Funding

European Commission
PULSAR - Pushing ultrafast laser material processing into a new regime of plasma-controlled ablation 682032