5 papers · 1 filter
A time grating approach to ultrahigh-Q guided mode resonance
Youxiu Yu, Xiaofeng Xu, Yang Long +4
Guided mode resonance (GMR), the resonant coupling of free-space light into leaky waveguide modes, is traditionally achieved with periodic patterned structures. However, this appro…
Broadband temporal localization and delocalized temporal edge states in time photonic crystals
Junkai Jiang, Hao Hu, Yang Long +4
Time photonic crystals have attracted growing attention in recent years owing to their abilities to enable broadband field enhancements, e.g., free-space electromagnetic waves, dip…
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…
Topologically protected edge states in time photonic crystals with chiral symmetry
Yukun Yang, Hao Hu, Liangliang Liu +7
Time photonic crystals are media in which their electromagnetic parameters are modulated periodically in time, showing promising applications in non-resonant lasers and particle ac…
Momentum flatband and superluminal propagation in a photonic time Moiré superlattice
Linyang Zou, Hao Hu, Haotian Wu +4
Flat bands typically describe energy bands whose energy dispersion is entirely or almost entirely degenerate. One effective method to form flat bands is by constructing Moiré supe…