Bipolar configuration with twisted loop defect in chiral nematic droplets under homeotropic surface anchoring
URI (for links/citations):https://www.nature.com/articles/s41598-017-15049-6
Mikhail N. Krakhalev
Anna P. Gardymova
Oxana O. Prishchepa
Vladimir Yu. Rudyak
Alexander V. Emelyanenko
Victor Ya. Zyryanov
Институт инженерной физики и радиоэлектроники
Кафедра общей физики
Кафедра приборостроения и наноэлектроники
Journal Name:Scientific Reports
Journal Quartile in Scopus:Q1
Journal Quartile in Web of Science:Q1
Bibliographic Citation:Mikhail N. Krakhalev. Bipolar configuration with twisted loop defect in chiral nematic droplets under homeotropic surface anchoring [Текст] / Mikhail N. Krakhalev, Anna P. Gardymova, Oxana O. Prishchepa, Vladimir Yu. Rudyak, Alexander V. Emelyanenko, Liu Jui-Hsiang, Victor Ya. Zyryanov // Scientific Reports. — 2017.
Optical textures and appropriate orientational structures have been studied within droplets of chiral nematic dispersed in polymer assigning the homeotropic anchoring. The helix axis of the chiral structure inside droplets forms the bipolar configuration. The optical droplet textures were analysed in the unpolarised light, analyser switching-off scheme and in crossed polarisers. The twisted loop defect reveals itself convincingly in all schemes. Its appearance at the optical patterns of the chiral nematic droplets has been examined depending on their size and the aspect direction. The existence of the defect has been verified by the structural and optical calculations. The effect of an electric field on both the defect line shape and the orientational structure of chiral nematic has been studied.