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Photopolymerization with high-order Bessel light beams

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Author(s)

Yoshihiko Arita, Junhyung Lee, Haruki Kawaguchi, Reimon Matsuo, Katsuhiko Miyamoto, Kishan Dholakia, Takashige Omatsu

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Abstract

We study photopolymerization with high-order Bessel light beams with phase singularities on-axis. Self-trapping and self-focusing of propagation-invariant light beams in a photopolymer allow the fabrication of extended helical microfibers with a length scale of a centimeter, which is more than an order of magnitude larger than the propagation distance of the Bessel light beams. We show the evolution of microfibers rotating at a rate proportional to the incident optical power, while the periodicity of the helical structures remains constant, irrespective of the laser power. This suggests that optical momentum transfer plays a predominant role in the growth and rotation of such fiber structures.
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Original languageEnglish
Pages (from-to)4080-4083
JournalOptics Letters
Volume45
Issue number14
DOIs
Publication statusPublished - 15 Jul 2020

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