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Proceedings Paper

Unveiling details of defect structures in chiral and achiral nematic droplets by improving simulations of optical images
Author(s): Urban Mur; Simon Čopar; Miha Ravnik; Miha Čančula; Slobodan Žumer
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Paper Abstract

There is a great increase of interest in the nematic defect structures, where interplay of confinement, elasticity, anchoring, and chirality leads to complex ordering fields with singular topological defects and nonsingular solitonic deformations. Beside numerous advanced microscopy techniques, the standard polarized optical microscopy is still an elementary first-to-take tool in use. To fully capture its potential and understand the limitations in unveiling the details of complex structures, we apply a recently extended Jones matrix approach based on ray-tracing that allows to include also effects of focusing and numerical aperture. The approach is illustrated with results of recent studies of cholesteric droplets.

Paper Details

Date Published: 13 October 2016
PDF: 9 pages
Proc. SPIE 9940, Liquid Crystals XX, 99400V (13 October 2016); doi: 10.1117/12.2239585
Show Author Affiliations
Urban Mur, Univ. of Ljubljana (Slovenia)
Simon Čopar, Univ. of Ljubljana (Slovenia)
Miha Ravnik, Univ. of Ljubljana (Slovenia)
Jožef Stefan Institute (Slovenia)
Miha Čančula, Univ. of Ljubljana (Slovenia)
Slobodan Žumer, Univ. of Ljubljana (Slovenia)
Jožef Stefan Institute (Slovenia)


Published in SPIE Proceedings Vol. 9940:
Liquid Crystals XX
Iam Choon Khoo, Editor(s)

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