2 papers
physics.optics2026
Ghost-wave momentum bandgaps in anisotropic Floquet lattices
Junhua Dong, Huan He, Huanan Li
Momentum bandgaps, characterized by complex frequencies and non-resonant amplification effects, provide a powerful route for wave manipulation beyond conventional band theory. Here…
physics.optics2025
Non-uniform wave momentum bandgap in biaxial anisotropic photonic time crystals
Junhua Dong, Sihao Zhang, Huan He +2
Photonic time crystals (PTCs) host momentum bandgaps enabling intriguing non-resonant light amplification in propagating waves, but opening substantial bandgaps demands refractive…