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physics.optics2025
Observation of wave amplification and temporal topological state in a genuine photonic time crystal
Jiang Xiong, Xudong Zhang, Longji Duan +6
Photonic time crystals (PTCs) are materials whose dielectric permittivity is periodically modulated in time, giving rise to bandgaps not in energy-as in conventional photonic cryst…
physics.optics2024★ 1 cited
Flatbands from Bound States in the Continuum for Orbital Angular Momentum Localization
Weiwei Zhu, Hongyu Zou, Yong Ge +7
A flatband material is a system characterized by energy bands with zero dispersion, allowing for the compact localization of wavefunctions in real space. This compact localization…