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Bound States in the Continuum in Bilayer Photonic Crystal with TE-TM Cross-Coupling
Hong-Fei Wang, Samit Kumar Gupta, Xue-Yi Zhu +3
Bound states in the continuum (BICs) in photonic crystals represent the unique solutions of wave equations possessing an infinite quality-factor. We design a type of bilayer photon…
Thermal Stability Enhancement in Epitaxial α-Sn Films by Strain Engineering
Huanhuan Song, Jinshan Yao, Yuanfeng Ding +5
Exploring new topological materials with large topological nontrivial bandgaps and simple composition is attractive for both theoretical investigation and experimental realization.…
Dimensional hierarchy of higher-order topology in three-dimensional sonic crystals
Xiujuan Zhang, Bi-Ye Xie, Hong-Fei Wang +5
Topological phases of matter have been extensively studied for their intriguing bulk and edge properties. Recently, higher-order topological insulators with boundary states that ar…
Anomalous Quadrupole Topological Insulators in 2D Nonsymmorphic Sonic Crystals
Zhi-Kang Lin, Hai-Xiao Wang, Zhan Xiong +2
The discovery of quadrupole topology opens a new horizon in the study of topological phenomena. However, the existing experimental realizations of quadrupole topological insulators…