Toroidal Configuration of a Cholesteric Liquid Crystal in Droplets with Homeotropic Anchoring

M. N. Krakhalev; V. Yu Rudyak; A. P. Gardymova; V. Ya Zyryanov

doi:10.1134/S0021364019070075

Toroidal Configuration of a Cholesteric Liquid Crystal in Droplets with Homeotropic Anchoring

M. N. Krakhalev^*, V. Yu Rudyak, A. P. Gardymova, V. Ya Zyryanov

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Orientational structures formed in cholesteric droplets with homeotropic surface anchoring have been studied by means of polarization optical microscopy and computer simulations. It has been found that, when the ratio of the size of droplets to the pitch of a cholesteric helix ranges from 1.4 to 2.9, an axisymmetric toroidal cholesteric structure is formed with a topological linear defect in the form of an equatorially located surface ring. The features of the toroidal structure in cholesteric droplets and their optical textures for various observation schemes are examined in detail.

Original language	English
Pages (from-to)	478-481
Number of pages	4
Journal	JETP Letters
Volume	109
Issue number	7
DOIs	https://doi.org/10.1134/S0021364019070075
State	Published - 1 Apr 2019
Externally published	Yes

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title = "Toroidal Configuration of a Cholesteric Liquid Crystal in Droplets with Homeotropic Anchoring",

abstract = "Orientational structures formed in cholesteric droplets with homeotropic surface anchoring have been studied by means of polarization optical microscopy and computer simulations. It has been found that, when the ratio of the size of droplets to the pitch of a cholesteric helix ranges from 1.4 to 2.9, an axisymmetric toroidal cholesteric structure is formed with a topological linear defect in the form of an equatorially located surface ring. The features of the toroidal structure in cholesteric droplets and their optical textures for various observation schemes are examined in detail.",

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AU - Krakhalev, M. N.

AU - Rudyak, V. Yu

AU - Gardymova, A. P.

AU - Zyryanov, V. Ya

PY - 2019/4/1

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N2 - Orientational structures formed in cholesteric droplets with homeotropic surface anchoring have been studied by means of polarization optical microscopy and computer simulations. It has been found that, when the ratio of the size of droplets to the pitch of a cholesteric helix ranges from 1.4 to 2.9, an axisymmetric toroidal cholesteric structure is formed with a topological linear defect in the form of an equatorially located surface ring. The features of the toroidal structure in cholesteric droplets and their optical textures for various observation schemes are examined in detail.

AB - Orientational structures formed in cholesteric droplets with homeotropic surface anchoring have been studied by means of polarization optical microscopy and computer simulations. It has been found that, when the ratio of the size of droplets to the pitch of a cholesteric helix ranges from 1.4 to 2.9, an axisymmetric toroidal cholesteric structure is formed with a topological linear defect in the form of an equatorially located surface ring. The features of the toroidal structure in cholesteric droplets and their optical textures for various observation schemes are examined in detail.

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Toroidal Configuration of a Cholesteric Liquid Crystal in Droplets with Homeotropic Anchoring

Abstract

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