Metamaterials possess exotic properties that do not exist in nature. Gradient metamaterials,
which are characterized by a continuous spatial variation of their properties, provide a …

Localized surface plasmons (LSPs) are localized oscillations of free electrons in metal
nanoparticles at optical frequencies. Confined mode profiles and near‐field enhancements …

Acoustic black hole (ABH) structures have been widely utilized for vibration suppression
owing to its tailored indentations according to a power-law profile. Compared with single …

The ability to slow down wave propagation in materials has attracted significant research
interest. A successful solution will give rise to manageable enhanced wave–matter …

Synthetic dimension provides a new platform for realizing topological photonic devices.
Here, we propose a method to realize a rainbow concentrator of topological photonic states …

Compact, lightweight, and on-chip spectrometers are required to develop portable and
handheld sensing and analysis applications. However, the performance of these …

Spatial modulation of sound velocity below the wavelength scale can introduce strong
frequency-dependent acoustic responses in tailored composite materials, regardless the fact …

We have theoretically and numerically investigated an analog of electromagnetically
induced transparency (EIT) in plasmonic systems consisting of multiple cascaded nanodisk …

In this work, we numerically and experimentally investigate topological rainbow trapping and
energy amplification of acoustic waves in a gradient phononic crystal (PC) structure. Thanks …

The elastic analogs of topological insulators (TIs) have attracted substantial research
interest owing to their potential prospects in wave manipulation and low-loss transmission …