Coalescence of suspended and sessile isotropic and radial nematic liquid crystal drops.

Charlotte G Slaughter¹, Yihao Chen¹, Sophie Ettinger¹, Ali Mozaffari², Rui Zhang³, Peter J Collings^1,4, A G Yodh¹

¹Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA. cgs86@sas.upenn.edu.

²OpenEye, Cadence Molecular Sciences, Boston, MA 02114, USA.

³Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR.

⁴Department of Physics and Astronomy, Swarthmore College, Swarthmore, PA 19081, USA.

PubMed DOI

Abstract

We investigate the coalescence of suspended and sessile liquid crystal (LC) drops with homeotropic anchoring in both isotropic and nematic phases. Previous theoretical studies have suggested that coalescence of two radial nematic liquid crystal (NLC) drops could be prevented by an energy barrier due to formation of a topological defect (ring defect) between the two drops. We employ polarized optic…

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