3 papers
physics.optics2026
Self-focusing of high-intensity beams with grid structures
Jiaqi Wang, Yang Xu, Saumya Choudhary +2
Laser beams with high optical power propagating in a Kerr medium can undergo self-focusing when their power exceeds a critical power determined by the optical properties of the med…
physics.optics2025
Hybrid Deep Reconstruction for Vignetting-Free Upconversion Imaging through Scattering in ENZ Materials
Hao Zhang, Yang Xu, Wenwen Zhang +10
Optical imaging through turbid or heterogeneous environments (collectively referred to as complex media) is fundamentally challenged by scattering, which scrambles structured spati…
physics.optics2025
High-fidelity spatial information transfer through dynamic scattering media by an epsilon-near-zero time-gate
Yang Xu, Saumya Choudhary, Long D. Nguyen +7
Transparent conducting oxides (TCO) such as indium-tin-oxide (ITO) exhibit strong optical nonlinearity in the frequency range where their permittivities are near zero. We leverage…