Optical Thouless pumping transport and nonlinear switching in a topological low-dimensional discrete nematic liquid crystal array

Pawel S. Jung; Midya Parto; Georgios G. Pyrialakos; Hadiseh Nasari; Katarzyna Rutkowska; Marek Trippenbach; Mercedeh Khajavikhan; Wieslaw Krolikowski; Demetrios N. Christodoulides

doi:10.1103/PhysRevA.105.013513

Optical Thouless pumping transport and nonlinear switching in a topological low-dimensional discrete nematic liquid crystal array

Pawel S. Jung^*, Midya Parto, Georgios G. Pyrialakos, Hadiseh Nasari, Katarzyna Rutkowska, Marek Trippenbach, Mercedeh Khajavikhan, Wieslaw Krolikowski, Demetrios N. Christodoulides

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We theoretically investigate a Thouless pumping scheme in the one-dimensional topological Su-Schrieffer-Heeger (SSH) model for single and multiple band-gap 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.

Original language	English
Article number	013513
Journal	Physical Review A
Volume	105
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevA.105.013513
Publication status	Published - Jan 2022

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Jung, P. S., Parto, M., Pyrialakos, G. G., Nasari, H., Rutkowska, K., Trippenbach, M., Khajavikhan, M., Krolikowski, W., & Christodoulides, D. N. (2022). Optical Thouless pumping transport and nonlinear switching in a topological low-dimensional discrete nematic liquid crystal array. Physical Review A, 105(1), Article 013513. https://doi.org/10.1103/PhysRevA.105.013513

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abstract = "We theoretically investigate a Thouless pumping scheme in the one-dimensional topological Su-Schrieffer-Heeger (SSH) model for single and multiple band-gap 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.",

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AU - Jung, Pawel S.

AU - Parto, Midya

AU - Pyrialakos, Georgios G.

AU - Nasari, Hadiseh

AU - Rutkowska, Katarzyna

AU - Trippenbach, Marek

AU - Khajavikhan, Mercedeh

AU - Krolikowski, Wieslaw

AU - Christodoulides, Demetrios N.

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N2 - We theoretically investigate a Thouless pumping scheme in the one-dimensional topological Su-Schrieffer-Heeger (SSH) model for single and multiple band-gap 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.

AB - We theoretically investigate a Thouless pumping scheme in the one-dimensional topological Su-Schrieffer-Heeger (SSH) model for single and multiple band-gap 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.

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Optical Thouless pumping transport and nonlinear switching in a topological low-dimensional discrete nematic liquid crystal array

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