Multihump thermo-reorientational solitary waves in nematic liquid crystals: Modulation theory solutions

Gaetano Assanto, Cassandra Khan, Noel F Smyth

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

The propagation of light induced thermo-reorientational solitary waves in nematic liquid crystals is studied using numerical solutions of the full governing equations and variational approximations. These thermo-reorientational solitary waves form as the nonlocal refractive index response to extraordinarily polarized light beams is both self-focusing via the induced rotation of the constituent
molecules and self-defocusing owing to the temperature increase through optical absorption. These competing nonlinearities can lead to the formation of one- and two-dimensional multi-humped solitary and ring-shaped waves at high enough optical powers, with a volcano profile in the plane
transverse to propagation. The variational solutions for these self-localized structured beams are in
remarkably good agreement with full numerical solutions of the governing equations.
Original languageEnglish
Article number013526
Number of pages11
JournalPhysical Review A
Volume104
Issue number1
DOIs
Publication statusPublished - 28 Jul 2021

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