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physics.optics2024★ 1 cited
Frequency-selective terahertz wave amplification by a time-boundary-engineered Huygens metasurface
Fu Deng, Fengjie Zhu, Xiaoyue Zhou +7
Ultrafast manipulation of optical resonance can establish the time-boundary effect in time-variant media leading to a new degree of freedom for coherent control of electromagnetic…
cond-mat.mtrl-sci2024
Light-induced percolative topological phase transition in type-II Weyl semimetal WTe2
Xiaoyue Zhou, Fu Deng, Yifan Gao +5
We report on an ultrafast terahertz free-carrier dynamic study of a photo-excited WTe2 thin film. In the photo-excited state, we observe a metastable electronic state featuring neg…