163 citations · 265 across the 12 of their papers we have counts for
6 papers · 1 filter
Supercell-enabled inverse design of boundary-state dispersion for group-velocity control in pseudomagnetic phononic crystals
Hua-Yang Chen, Nan-Xin Yu, Zhen-Hui Qin +2
Topological boundary states offer a platform for guided-wave propagation within bulk bandgaps. Their propagation characteristics depend not only on the spectral extent of the state…
Deployable Nanoelectromechanical Bound States in the Continuum Enabled by GHz Lamb Wave Phononic Crystals on LiNbO3 Thin Films
Sheng-Nan Liang, Zhen-Hui Qin, Shu-Mao Wu +3
Bound states in the continuum (BICs) are a fascinating class of eigenstates that trap energy within the continuum, enabling breakthroughs in ultra-low-threshold lasing, high-Q sens…
Boundary-induced helical bulk acoustic transport in LiNbO3 thin films
Zhe Li, Zhen-Hui Qin, Shu-Mao Wu +10
We experimentally demonstrate boundary-induced helical bulk states (BI-HBSs) for RF acoustic transport in LiNbO3 thin-film phononic crystals (approximately 175-200 MHz). A boundary…
K-band LiNbO3 A3 Lamb-wave Resonators with Sub-wavelength Through-holes
Shu-Mao Wu, Hao Yan, Chen-Bei Hao +3
Addressing critical challenges in Lamb wave resonators, this paper presents the first validation of resonators incorporating sub-wavelength through-holes. Using the A3 mode resonat…
Double-layer Thin-film LiNbO3 Longitudinally Excited Shear Wave Resonators with Ultra-large Electromechanical Coupling Coefficient and Spurious-Free Performance
Zhen-Hui Qin, Shu-Mao Wu, Chen-Bei Hao +4
This work proposes a double-layer thin-film lithium niobate (LiNbO3) longitudinally excited shear wave resonator with a theoretical electromechanical coupling coefficient exceeding…
Guiding Robust Valley-dependent Edge States by Surface Acoustic Waves
Zhen Wang, Fu-Kang Liu, Si-Yuan Yu +4
Recently, the concept of valley pseudospin, labeling quantum states of energy extrema in momentum space, has attracted enormous attention because of its potential as a new type of…