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Can I read Dark topological valley Hall edge solitons on EtoBox?
Dark topological valley Hall edge solitons by Boquan Ren; Hongguang Wang; Victor O. Kompanets; Yaroslav V. Kartashov; Yongdong Li; Yiqi Zhang is a Engineering article available to read on EtoBox.
What is Dark topological valley Hall edge solitons about?
Topological edge solitons propagating along the edge of a photonic topological insulator are localized selfsustained hybrid states that are immune to defects/disorders due to the protection of the edge states stemming from the nontrivial topology of the system. Here, we predict that exceptionally robust dark valley Hall edge solitons may form at the domain walls between two honeycomb lattices with broken inversion symmetry. The underlying structure can be created with femtosecond laser inscription, it possesses a large bandgap where well-localized dark edge solitons form, and in contrast to systems with broken timereversal symmetry, it does not require external magnetic fields or complex longitudinal waveguide modulations for the realization of the topological phase. We present the envelope equation allowing constructing dark valley Hall edge solitons analytically. Such solitons propagate without radiation into the bulk of the lattice and can circumvent sharp corners, which allows observing their persistent circulation along the closed triangular domain wall boundary. They survive over huge distances even in the presence of disorder in the underlying lattice. We also investigate in
Who reads Dark topological valley Hall edge solitons?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Boquan Ren; Hongguang Wang; Victor O. Kompanets; Yaroslav V. Kartashov; Yongdong Li; Yiqi Zhang
- Publisher
- Walter de Gruyter GmbH
- Published
- 2021
- Language
- EN
- Field
- Engineering (Physical Sciences)