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Localizing elastic edge waves via the topological rainbow effect
We combine two different fields, topological physics and graded metamaterials, to design a
topological metasurface to control and redirect elastic waves. We strategically design a two …
topological metasurface to control and redirect elastic waves. We strategically design a two …
Broadband large-scale acoustic topological waveguides
The acoustic topological waveguide (ATW) hosting topologically protected waveguide
modes provides a unique opportunity for achieving large-scale sound transport with …
modes provides a unique opportunity for achieving large-scale sound transport with …
On the use of topology optimized band gap structures for the realization of second-order acoustic topological insulators with valley-selective corner states
Second-order acoustic topological insulators (SATIs) hosting corner states provide
unprecedented opportunities for realizing robust transport of sound in higher dimensions …
unprecedented opportunities for realizing robust transport of sound in higher dimensions …
Analytical approximations for multiple scattering in one-dimensional waveguides with small inclusions
In this paper, we propose a new model to approximate the wave response of waveguides
containing an arbitrary number of small inclusions. The theory is developed for general one …
containing an arbitrary number of small inclusions. The theory is developed for general one …
Hybrid topological guiding mechanisms for photonic crystal fibers
We create hybrid topological-photonic localisation of light by introducing concepts from the
field of topological matter to that of photonic crystal fiber arrays. S-polarized obliquely …
field of topological matter to that of photonic crystal fiber arrays. S-polarized obliquely …
Analytical solutions for Bloch waves in resonant phononic crystals: deep-subwavelength energy splitting and mode steering between topologically protected interfacial …
We derive analytical solutions based on singular Green's functions, which enable efficient
computations of scattering simulations or Floquet–Bloch dispersion relations for waves …
computations of scattering simulations or Floquet–Bloch dispersion relations for waves …
Acoustic topological circuitry in square and rectangular phononic crystals
We use square and rectangular phononic crystals to create experimental realizations of
complex topological phononic circuits. The exotic topological transport observed is wholly …
complex topological phononic circuits. The exotic topological transport observed is wholly …
Clusters of Bloch waves in three-dimensional periodic media
We consider acoustic wave propagation through a periodic array of the inclusions of
arbitrary shape. The inclusion size is much smaller than the array period while the …
arbitrary shape. The inclusion size is much smaller than the array period while the …
Wide range of wave attenuation in beam-supported stepped hybrid phononic crystals
JC Guo, JR Li, L Zhang, Z Zhang - Wave Motion, 2022 - Elsevier
A beam-supported stepped hybrid phononic crystals (PnCs) was proposed for the wave
attenuations in the wide frequency range from 9.4 Hz to 8.4 kHz. For a ternary beam …
attenuations in the wide frequency range from 9.4 Hz to 8.4 kHz. For a ternary beam …
Propagation and dispersion of Bloch waves in periodic media with soft inclusions
We investigate the behavior of waves in a periodic medium containing small soft inclusions
or cavities of arbitrary shape, such that the homogeneous Dirichlet conditions are satisfied at …
or cavities of arbitrary shape, such that the homogeneous Dirichlet conditions are satisfied at …