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Single-mode interface states in heterostructure waveguides with Bragg and non-Bragg gaps
Interface states can always arise in heterostructures that consist of two or more (artificial) materials with topologically different energy bands. The gapped band structure can be classified by the Chern number (a topological invariant) generally or the Zak phase in one-dimensional periodic systems...
| Autores principales: | , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Nature Publishing Group
2017
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5347004/ https://www.ncbi.nlm.nih.gov/pubmed/28287173 http://dx.doi.org/10.1038/srep44381 |