Can elastic constants and surface alignment be obtained from polarized microscopy images of nematic droplets? A Monte Carlo study

Chiccoli, C.; Pasini, Paolo; Zannoni, Claudio

doi:10.1016/j.molliq.2017.12.045

Cited by 8 publications

(2 citation statements)

References 51 publications

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“…We believe this effect potentially allows us to determine in situ the ratio between elastic constants in cholesteric LC mixtures inside the PDLC matrix. In contrast to the approach based on the POM at absence of electric field 37 , our method is based on the analysis of system response to the external electric field. As a result, it is more sensitive to the changes in elastic constants.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

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Effect of elastic constants on electrically induced transition in twisted radial cholesteric droplets

Rudyak

Krakhalev

Gardymova

et al. 2022

Sci Rep

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In this work, we investigated the behavior of cholesteric droplets with homeotropic boundary conditions experimentally and by computer simulations. Small droplets forming twisted radial structures were studied. We obtained two different paths of structural transformations under electric field in such droplets. The choice between these paths has probabilistic nature. The ratio between the two transition types was found to be sensitive to the elastic constants of LC forming the droplet. We suggest the principal approach for in situ estimation of ratios between elastic constants in cholesteric LCs deposited in polymer-dispersed LC material and discuss its strong and weak sides.

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Section: Conclusion and Discussionmentioning

confidence: 99%

“…On the other side, its important benefit is that it can be based on experimental observations or directly compared with it. Recently this problem was addressed 37 by simulating polarized microscopy images of a large set of structures for various elastic constants.…”

Section: Introductionmentioning

confidence: 99%