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physics.optics2026
Differentiable eigendecomposition-free RCWA for full-tensor anisotropic photonics
Enbo Yang, Qiang Song, Weiwei Cai
Full-tensor anisotropy transforms rigorous coupled-wave analysis (RCWA) into a large, fully coupled non-Hermitian eigenproblem, making eigendecomposition expensive and difficult to…
physics.optics2026
Volumetric Optical Scattering Neural Networks
Xuhao Luo, Qiang Song, Weiwei Cai +7
Optical neural networks rely on planar photonic circuits or spatially separated diffractive planes, limiting volumetric integration and requiring precise alignment. Here we propose…