Single-mode interface states in heterostructure waveguides with Bragg and non-Bragg gaps
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DOI: 10.1038/srep44381
Abstract: 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… read more here.
Keywords: interface states; mode; non bragg; bragg gaps ... See more keywords
Thermally-switchable Bragg gaps in additively manufactured phononic crystals
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DOI: 10.1088/1361-665x/ade2c1
Abstract: Recently, additive manufacturing (AM) fabrications are commonly applied to produce acoustic metamaterials or phononic crystals (PnCs) as tools for complex geometrical designs. However, the material properties of those additive manufactured materials are less involved in… read more here.
Keywords: bragg gaps; phononic crystals; gaps additively; thermally switchable ... See more keywords