Laser induced rotation of trapped chiral and achiral nematic droplets

Details Laser induced rotation of trapped chiral and achiral nematic droplets Laser induced rotation of trapped chiral and achiral nematic droplets

2010-02-05

arxiv.org/abs/1002.1204v1

Physics

Condensed Matter

Soft Condensed Matter

15 pages, 6 figures

Scientific paper

We study the response of optically trapped achiral and chiralised nematic liquid crystal droplets to linear as well as circular polarised light. We find that there is internal dissipation in rotating achiral nematic droplets trapped in glycerine. We also demonstrate that some chiralised droplets rotate under linearly polarised light. The best fit to our data on chiralised droplets indicates that rotational frequency of these droplets with radius R is approximately proportional to1/R^2, rather than to 1/R^3.

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