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Related Experiment Video

Updated: Jul 21, 2025

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
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Tunable nonlinear optical mapping in a multiple-scattering cavity.

Yaniv Eliezer1, Ulrich Rührmair2,3, Nils Wisiol4

  • 1Department of Applied Physics, Yale University, New Haven, CT 06520.

Proceedings of the National Academy of Sciences of the United States of America
|July 25, 2023
PubMed
Summary
This summary is machine-generated.

Researchers developed a reconfigurable cavity to enhance optical nonlinearity in disordered systems. This breakthrough boosts intensity fluctuations and correlations, offering versatile applications for nonlinear light manipulation.

Keywords:
light statisticsnonlinear mappingsoptical scattering

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Area of Science:

  • Optics and Photonics
  • Nonlinear Dynamics
  • Condensed Matter Physics

Background:

  • Nonlinear disordered systems are crucial for fundamental research and practical applications.
  • Optical nonlinearity in random scattering systems is typically weak due to intrinsic material limitations.

Purpose of the Study:

  • To propose and experimentally demonstrate a novel method for achieving strong optical nonlinearity in reconfigurable multiple-scattering cavities.
  • To investigate the relationship between scattering potential and light output in these systems.
  • To explore the tunability and applications of enhanced nonlinear mapping.

Main Methods:

  • Fabrication and characterization of a reconfigurable multiple-scattering cavity.
  • Experimental realization of a nonlinear mapping between scattering potential and emergent light.
  • Quantitative analysis of the degree of nonlinearity and its dependence on scattering events.
  • Tuning the effective order of nonlinear mapping at low optical powers.

Main Results:

  • A highly nonlinear mapping was successfully achieved and experimentally verified.
  • The degree of nonlinearity was found to depend on the number of scattering events.
  • The effective order of nonlinear mapping is tunable over a broad range.
  • Strong nonlinear mapping led to enhanced output intensity fluctuations and long-range correlations.

Conclusions:

  • The developed approach provides a flexible, robust, and energy-efficient platform for exploring nonlinear mappings in disordered systems.
  • This work opens new avenues for fundamental studies and practical applications leveraging enhanced optical nonlinearity.
  • The reconfigurable cavity offers a versatile tool for manipulating light in complex scattering media.