English

Mesoscopic light transport in nonlinear disordered media

Optics 2024-09-10 v1

Abstract

Nonlinear disordered media uniquely combine multiple scattering and second-harmonic generation. Here, we investigate the statistical properties of the nonlinear light generated within such media. We report super-Rayleigh statistics of the second-harmonic speckle intensity, and demonstrate that it is caused by the mesoscopic correlations arising in extreme scattering conditions. The measured conductance is the lowest ever observed in an isotropically scattering 3D medium, with applications in broadband second-harmonic generation, wavefront shaping in nonlinear disordered media, and photonic computing.

Keywords

Cite

@article{arxiv.2409.05488,
  title  = {Mesoscopic light transport in nonlinear disordered media},
  author = {Alfonso Nardi and Andrea Morandi and Romain Pierrat and Arthur Goetschy and Xuanchen Li and Frank Scheffold and Rachel Grange},
  journal= {arXiv preprint arXiv:2409.05488},
  year   = {2024}
}

Comments

13 pages, 10 figures

R2 v1 2026-06-28T18:38:20.168Z