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Journal of Applied Mathematics and Statistical Applications | Volume: 1
August 23-24, 2018 | London, UK
Applied Physics
3
rd
International Conference on
Functionalizing liquid crystals for phononic, biophotonic and multiphysics devices
Erms Pereira
Federal Rural University of Pernambuco, Brazil
T
he knowledge on the manipulation of energy is of core
importance for research, technological innovation and
industry. However, in many of the related devices, it is used
different materials and configurations to build them, beyond
that they are monopurpose andmonophysics, dealing with one
type of energy. An alternative to bypass these problems is the
usage of liquid crystals: inanimate or living ones. In this work,
we show our results on modeling and simulating three kinds of
diode (thermal, bio-optical and thermal-optical), a sensor based
on the thermal Hall effect and a thermal-optical controller. We
found that the rectificationeffect of our diodes canbecreatedby
anescaped radial disclination confined ina capillary tube, having
an asymmetric molecular director and asymmetric physical
tensors (dielectric, thermal conductivity, etc.). This asymmetry,
studied by classical and geometrical models, generates the
thermal and optical rectifications. For such diodes, we study
them made by 5CB and a chromonic liquid crystal hosting the
bacteriumBacillus subtilis. The sensor basedon the thermal Hall
effect uses a hypothetic chiral biaxial nematic liquid crystal with
a magnetic dipole composing a strip, with an initial longitudinal
temperature gradient. We found that such system produces a
The thermal-optical controller consists of 5CB confinedbetween
two concentric cylinders, where, due to the action of an applied
electric field, it is allowed to switch between two molecular
configurations. We found simultaneous concentration and
repulsion of heat and light. Our results present new examples
of manipulating heat, light and both simultaneously using liquid
crystals, allowing one to apply such materials for developing
devices that process more information at the same time.
e:
erms.pereira@ufrpe.br