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physics.optics2026
Scale-free wave localization at topological multicriticality
Zhijie Xue, Yuan Tian, Nanyu Chen +4
Spatial wave localization at boundaries is conventionally restricted to exponential decay. Here, we observe a scale-free boundary mode exhibiting anomalous polynomial decay, highli…
physics.optics2026
Spectral window engineering for temporal leakage of synthetic gain waveform
Fuxin Guan, Nanyu Chen, Zemeng Lin +4
Arbitrary waveform generation enables precise engineering of optical fields. As an alternative, the synthetic wave approach has been proposed to generate virtual-gain waveforms for…
physics.optics2025
High-order virtual gain for optical loss compensation in plasmonic metamaterials
Fuxin Guan, Zemeng Lin, Sixin Chen +2
Metamaterials exhibit extraordinary properties yet suffer from pronounced wave dissipation, particularly in optical imaging and sensing systems. Recent advances leveraging complex…