Two photon photo-polymerization induced helical microfibers

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

Research output: Contribution to journalConference articlepeer-review


We successfully created helical microfibers by irradiating picosecond optical vortex pulses with a wavelength of 532 nm to ultraviolet curing resin via a two-photon-photopolymerization process. Permanent refractive index change of resin caused by laser triggers the self-focusing of light and forms the Light-induced self-written waveguides. In this process, the orbital angular momentum of the light is transferred to make a helical microfiber. The resulting helical microfibers exhibited a length of ∼300 μm. Also, we can control the direction of twists by changing the sign of the topological charge of optical vortex.

Original languageEnglish
Article numberOMC-8-05
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2019
EventOptical Manipulation and Structured Materials Conference 2019 - Yokohama, Japan
Duration: 2019 Apr 222019 Apr 26

Bibliographical note

Publisher Copyright:
© Optics & Photonics International Congress 2019.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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