@inproceedings{df67dbe4d1d34a058c189ccaac246011,
title = "Optically driven liquid crystal rotator",
abstract = "Rotation of nematic liquid crystal (NLC) droplets by irradiation of focused circular polarized light is experimentally studied. Optical torque transferred to a droplet depends on its size. We discuss the relation between the LC molecular alignment inside the droplet and its rotation mechanism. In a larger droplet, the internal LC alignment is bipolar and waveplate behavior becomes dominant. In a smaller droplet, the optical anisotropy reduces with decrease of its size and scattering process mainly contributes its rotation. We also construct multiple LC rotators system using a holographic optical tweezer. Such optically controllable vortex enables us to realize complex flow field at micron-scale.",
author = "Keita Saito and Yasuyuki Kimura",
note = "Publisher Copyright: {\textcopyright} 2022 SPIE.; 2022 Optical Manipulation and Structured Materials Conference, OMC 2022 ; Conference date: 18-04-2022 Through 22-04-2022",
year = "2022",
doi = "10.1117/12.2658782",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Takashige Omatsu",
booktitle = "Optical Manipulation and Structured Materials Conference, OMC 2022",
address = "United States",
}