152 citations · 192 across the 4 of their papers we have counts for
4 papers
Transient non-Hermitian skin effect
Zhongming Gu, He Gao, Haoran Xue +3
The discovery of non-Hermitian skin effect (NHSE) has opened an exciting direction for unveiling unusual physics and phenomena in non-Hermitian system. Despite notable theoretical…
Acoustic amplifying diode using non-reciprocal Willis coupling
Xinhua Wen, Heung Kit Yip, Choonlae Cho +2
We propose a concept called acoustic amplifying diode in combining both signal isolation and amplification in a single device. The signal is exponentially amplified in one directio…
Generation of superhelical time-varying OAM beam with space-time-coding digital metasurface
Jingxin Zhang, Peixing Li, Alex M H Wong +1
The recently proposed extreme-ultraviolet (EUV) beams with time-varying orbital angular momentum (OAM) realized by high-harmonic generation (HHG) provides extraordinary tools for q…
Lasing oscillation condition and group delay control in gain-assisted plasmon-induced transparency
Zi-Lan Deng, Jian-Wen Dong, He-Zhou Wang +2
A gain-assisted plasmonic waveguide with two detuned resonators is investigated in the plasmon-induced transparency window. Phase map is employed to study power transmittance and g…