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.
|Journal||Proceedings of SPIE - The International Society for Optical Engineering|
|Publication status||Published - 2019|
|Event||Optical Manipulation and Structured Materials Conference 2019 - Yokohama, Japan|
Duration: 2019 Apr 22 → 2019 Apr 26
Bibliographical notePublisher 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