Producing an Efficient, Collimated and Thin Annular Beam with a Binary Axicon
Optics
2018-05-23 v2
Abstract
We propose and demonstrate a method to produce a thin and highly collimated annular beam that propagates similarly to an ideal thin Gaussian ring beam, maintaining its excellent propagation properties. Our optical configuration is composed of a binary axicon - a circular binary phase grating, and a lens, making it robust and well suited for high-power lasers. It has a near-perfect circular profile with a dark center, and its large radius to waist ratio is achieved with high conversion efficiency. The measured profile and propagation are in excellent agreement with a numerical Fourier simulation we perform.
Keywords
Cite
@article{arxiv.1708.02827,
title = {Producing an Efficient, Collimated and Thin Annular Beam with a Binary Axicon},
author = {Oz Livneh and Gadi Afek and Nir Davidson},
journal= {arXiv preprint arXiv:1708.02827},
year = {2018}
}
Comments
Accepted for publication in "Applied Optics", Vol. 57 No. 14