TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Interactions of accessible solitons with interfaces in anisotropic media: the case of uniaxial nematic liquid crystals

Tutkimustuotosvertaisarvioitu

Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli043011
Sivumäärä26
JulkaisuNew Journal of Physics
Vuosikerta15
DOI - pysyväislinkit
TilaJulkaistu - 9 huhtikuuta 2013
OKM-julkaisutyyppiA1 Alkuperäisartikkeli

Tiivistelmä

We investigate, both theoretically and experimentally, spatial soliton interaction with dielectric interfaces in a strongly anisotropic medium with non-locality, such as nematic liquid crystals. We throw light on the role of refractive index gradients as well as optic axis variations in both voltage- and self-driven angular steering of non-local solitons. We specifically address and then employ in experiments a suitably designed electrode geometry in a liquid crystalline cell in order to define and tune a graded dielectric interface by exploiting the electro-optic response of the material through the in-plane reorientation of the optic axis in two distinct regions. We study both refraction and total internal reflection as well as voltage controlled steering of spatial solitons.

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