Discrete propagation and spatial solitons in nematic liquid crystals

Andrea Fratalocchi*, Gaetano Assanto, Kasia A. Brzda̧kiewicz, Mirek A. Karpierz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

117 Scopus citations


We investigate, for the first time to our knowledge, the discrete propagation of near-infrared light in a voltage-controlled array of channel waveguides in undoped nematic liquid crystals under planar anchoring conditions. This novel geometry enables us to drive the system from one-dimensional bulk diffraction to discrete propagation and, for larger excitations, to discrete spatial solitons, or nematicons. The observed phenomena are adequately described by a scalar model that encompasses the voltage-dependent reorientational response of the material.

Original languageEnglish (US)
Pages (from-to)1530-1532
Number of pages3
Issue number13
StatePublished - Jul 1 2004
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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