Director Fields Around Spherical and Cylindrical Micro Particles in a Liquid Crystal Host
作者： H. Matthias , H.-S. Kitzerow
DOI: 10.1080/15421400903060300
关键词: Optics 、 Polarizing microscopy 、 Condensed matter physics 、 Materials science 、 Cylinder 、 Dipole 、 Liquid crystal 、 Micro particles
摘要: Director fields around spherical and cylindrical micro particles embedded in a uniformly aligned nematic liquid crystal are investigated by means of fluorescence confocal polarizing microscopy. Both dipolar configurations (point-like defects) quadrupolar (ring-like defect lines) observed for particles. However, only lines appear the vicinity with shape. In contrast to previous predictions sphero-cylinders, studied here seem be pinned at cylinder edges. The experimental results good agreement numerical simulations.
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