Continuous rotation of a cholesteric liquid crystalline droplet by a circularly polarized optical tweezers

Yuta Tamura, Yasuyuki Kimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We studied the opto-mechanical response of droplets composed of cholesteric liquid crystal (ChLC) to a circularly polarized optical tweezers. Although the alignment of LC molecular within a droplet depends on the relative ratio of the droplet diameter d to the helical pitch p, the optically induced rotation was found to be asymmetric to the direction of circularly polarized light irrespective to the inner molecular alignment. We studied the rotation of the droplets with various sizes, helical pitch (strength of chirality) and different chirality. In the case of d/p ∼ 1, the direction of the rotation was simply determined by chirality of ChLC and the rotation was also observed for linearly polarized light, which has already been reported by Yang et al.

Original languageEnglish
Title of host publicationOptical Manipulation Conference
EditorsRyuji Morita, Takashige Omatsu
PublisherSPIE
ISBN (Electronic)9781510610057
DOIs
Publication statusPublished - Jan 1 2017
EventOptical Manipulation Conference 2017 - Yokohama, Japan
Duration: Apr 19 2017Apr 21 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10252
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherOptical Manipulation Conference 2017
CountryJapan
CityYokohama
Period4/19/174/21/17

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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  • Cite this

    Tamura, Y., & Kimura, Y. (2017). Continuous rotation of a cholesteric liquid crystalline droplet by a circularly polarized optical tweezers. In R. Morita, & T. Omatsu (Eds.), Optical Manipulation Conference [102520W] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10252). SPIE. https://doi.org/10.1117/12.2269410