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Experimental study demonstrates ratio-dependent director configurations in chiral nematic droplets with parallel anchoring, indicating structural transitions controlled by confinement.
Chiral nematic droplets of various radii R and intrinsic pitch P with parallel boundary conditions have been observed using a polarizing microscope. The visual appearances of the droplets have been compared with computer simulations from model director fields. It is found that the director configuration depends strongly on the ratio $R/P.$ For $P>R,$ the droplets have a twisted bipolar structure. For $P
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Xu et al. (1997) studied this question.
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