Physics-Informed Neural Networks for Optimal Beam Shaping in Flat Optics
Optics
2026-07-20 v1 Computational Physics
Abstract
We introduce a physics-informed neural network (PINN) approach for designing phase profiles in flat optics that reshape an incident beam into a prescribed target intensity distribution. The method solves Monge--Amp\`ere beam-shaping equations associated with energy-conserving ray mappings generated by a phase-only optical element. We treat both finite-distance and far-field targets using a generalized-Snell-law formulation. The learned phase profiles are validated by scalar diffraction simulations and compared with conventional phase-retrieval methods such as Gerchberg--Saxton. To our knowledge, this is the first time a PINN has been used for beam shaping problems in flat optics.
Cite
@article{arxiv.2607.18012,
title = {Physics-Informed Neural Networks for Optimal Beam Shaping in Flat Optics},
author = {Rafael de la Fuente Herrezuelo},
journal= {arXiv preprint arXiv:2607.18012},
year = {2026}
}