Optical Thouless pumping transport and nonlinear switching in a topological low-dimensional discrete nematic liquid crystal array
Optics
2022-01-17 v1
Abstract
We theoretically investigate a Thouless pumping scheme in the 1D topological Su-Schrieffer-Heeger (SSH) model for single and multiple band-gaps systems when implemented in a discrete nematic liquid crystal arrangement. For an electrically controlled SSH waveguide array, we numerically demonstrate edge-to-edge light transport at low power levels. On the other hand, at higher powers, the transport is frustrated by light-induced nonlinear defect states, giving rise to robust all-optical switching.
Keywords
Cite
@article{arxiv.2201.00880,
title = {Optical Thouless pumping transport and nonlinear switching in a topological low-dimensional discrete nematic liquid crystal array},
author = {Pawel S. Jung and Midya Parto and Georgios G. Pyrialakos and Hadiseh Nasari and Katarzyna Rutkowska and Marek Trippenbach and Mercedeh Khajavikhan and Wieslaw Krolikowski and Demetrios N. Christodoulides},
journal= {arXiv preprint arXiv:2201.00880},
year = {2022}
}
Comments
Accepted 23 December 2021 PRA