Featured Liquid Crystal Picture Art of the Month
On the edge of the cholesteric-isotropic phase transition
The liquid crystal used was a chiral nematic liquid sample with E7 (Merck) as the nematic host and EOS-12 chiral dopant at 7% by weight. The liquid crystal used was synthesized at the Universidad de Concepción, Chile. The image was taken using the POM technique at 5x magnification. To obtain this texture, the samples were heated at a rate of 1°C/min to about 61°C, where the cholesteric-isotropic transition begins. At the edge of the transition the heating is stopped, so the system forms a texture with a wide range of defects due to the coexistence of phases in the sample. The self-organization of vortices, cholesteric fingers, isotropic bubbles create an interesting display of chiral nematic phenomena.
LAFER web page: https://www.cec.uchile.cl/~lafer/index.html
Orcid ID: 0000-0002-6652-6131
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