Random lasers and scattering media Open access

3D scanning microscopy through scattering surfaces using the optical memory effect

Harish Sasikumar, Gerwin Osnabrugge, Kirsten Gerritsma, Bahareh Mastiani and 1 more

arXiv (Cornell University) | Jul 16, 2026

Abstract

Abstract

Wavefront shaping allows light to be focused through scattering objects. However, the wavefront correction found is only valid in a small region called the isoplanatic patch. Here we present a simple approach to extend this isoplanatic patch by shifting and scaling the corrected wavefront appropriately, demonstrating an 8.6-fold increase in the lateral scanning range and a 1.5-fold increase in the axial range through a scattering layer without the need to perform additional wavefront shaping measurements. Our findings agree well with a simple geometrical model that also allows us to extract the effective position of the scattering layer from the measurements.

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Authors

Researchers on this paper

Harish Sasikumar

first | ORCID 0000-0002-5816-4003

Gerwin Osnabrugge

middle

Kirsten Gerritsma

middle

Bahareh Mastiani

middle | ORCID 0000-0001-6626-2714

Ivo M. Vellekoop

last

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Citation

BibTeX

@article{Sasikumar2026scanning,
  title = {3D scanning microscopy through scattering surfaces using the optical memory effect},
  author = {Harish Sasikumar and Gerwin Osnabrugge and Kirsten Gerritsma and Bahareh Mastiani and Ivo M. Vellekoop},
  journal = {arXiv (Cornell University)},
  year = {2026},
  doi = {10.48550/arxiv.2607.14751},
  url = {https://doi.org/10.48550/arxiv.2607.14751}
}

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