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IDEA / SOURCES & STATISTICS

Light with imperfect coherence

What survives when fields no longer share a fixed phase?

Editorial synthesis by the site author across the reading notes below. It is an interpretation, not a finding reported by any single paper. Each note keeps the authors’ findings separate from commentary and links the original source.

Working summary

Thick-layer decoherence, localized emitters and ensembles of independent dipoles need different statistical treatments. Scattering matrices can be retained while the source or propagation statistics change.

Connections

The 2018 thesis and 2024 co-authored paper address propagation statistics. Brillouin-zone integration handles localized sources; trace formulations make ensemble objectives efficient.

Draws on the reading notes for: Coherence in multilayers, The starting point, Incoherence meets diffraction, Thousands of incoherent emitters, Optimize an ensemble, not every dipole.

Questions and limits

Spatial incoherence, thickness averaging and temporal coherence are not interchangeable. Degenerate diffraction orders can retain correlations even in a thick layer.

SOURCES

Referenced articles

Ordered by publication year. A shared theme does not imply direct citation or historical influence.

2002 / Numerical method

Matrix description of coherent and incoherent light reflection and transmission by anisotropic multilayer structures

K. Postava, T. Yamaguchi & R. Kantor

Uses partial-wave sums, Jones matrices and coherency vectors to obtain observable Mueller matrices.

Summary & commentary : Matrix description of coherent and incoherent light reflection and transmission by anisotropic multilayer structures
2024 / Experiment

Incoherent phenomena in anisotropic periodic structures: from modeling to experimental demonstration

K. Postava, P. Ciompa, T. Kohut, M. Drong, R. Ješko, H. Jaffrès, T. Fördös, L. Kotačka & H.-J. Drouhin

Combines scattering operators, generalized Mueller calculus and infinite incoherent partial-wave sums.

Summary & commentary : Incoherent phenomena in anisotropic periodic structures: from modeling to experimental demonstration

RELATED NOTES

Related notes