Figure 4: Neel walls separating oppositely handed domains. | Nature Communications

Figure 4: Neel walls separating oppositely handed domains.

From: Spontaneous emergence of chirality in achiral lyotropic chromonic liquid crystals confined to cylinders

Figure 4

POM images of DSCG in cylindrical capillaries with Neel Walls separating domains of opposite twist when the polarizer and analyser make an angle of (a,b) 90° and (c,d) 60°. The opposite twist handedness is revealed from the complementary intensities at complementary polarizer- analyzer angles. White arrows represent the direction of polarizer (P) and analyser (A). Scale bar, 100 μm. (e) The intensity of the centre of the wall region as the sample is rotated under crossed polarizers (black circles) and the theoretical intensity profile of an axial configuration (black line). (f) Corresponding schematic of the director configuration in the wall region.

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