Open AccessWrinkled axicons: shaping light from cusps
Author(s) -
Benjamin SanchezPadilla,
Andrius Žukauskas,
Artur Aleksanyan,
Armandas Balčytis,
Mangirdas Malinauskas,
Saulius Juodkazis,
Étienne Brasselet
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.024075
Subject(s) - axicon , optics , conical surface , materials science , femtosecond , optical vortex , light beam , laser , beam (structure) , laser beams , physics , composite material
We propose a novel class of refractive optical elements by wrinkling the conical surface of a usual (conical) axicon, which leads to geometrical singularities (cusps). Such wrinkled axicons have been fabricated at the micron scale by using three-dimensional femtosecond-laser photopolymerization technique and we report on their experimental and numerical characterization. The beam shaping capabilities of these structures are discussed for both intensity and phase, which includes topological beam shaping that results from azimuthally modulated optical spin-orbit interaction.