Featured Liquid Crystal Picture Art of the Month
"The Spring Festival"
The image shows a transmission polarizing microscopic Schlieren texture at a magnification of x40. The sample was prepared by depositing a thin film of glycerol on a glass slide and adding a small droplet of nematic 5CB on top, without the use of any cover slip. The nematic liquid crystal film is thus subjected to the planar boundary conditions of the glycerol-LC interface on the one side, and the homeotropic LC-air interface on the other. The sample was observed at room temperature.
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This picture beautifully illustrates how complex the alignment of liquid crystal director can be on a simple isotropic fluid such as glycerol.
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