Producing an efficient, collimated, and thin annular beam with a binary axicon

Oz Livneh, Gadi Afek, Nir Davidson

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

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.

Original languageEnglish
Pages (from-to)3202-3208
Number of pages7
JournalApplied Optics
Volume57
Issue number12
DOIs
StatePublished - 20 Apr 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2018 Optical Society of America.

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