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Spatial Coherence Manipulation on the Disorder-Engineered Statistical Photonic Platform.

Leixin Liu1, Wenwei Liu2, Fei Wang3

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Summary
This summary is machine-generated.

Researchers manipulated light fields

Keywords:
Coherencelight manipulationstatistical metasurface

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Area of Science:

  • Optics and Photonics
  • Statistical Optics

Background:

  • Spatial coherence is a fundamental property of light fields, crucial for optical applications.
  • Significant manipulation of spatial coherence on photonic platforms remains challenging.

Purpose of the Study:

  • To theoretically and experimentally control the spatial coherence of light fields.
  • To generate partially coherent light with tunable degrees of coherence.

Main Methods:

  • Utilized a metasurface to load random phase distributions onto light wavefronts.
  • Controlled spatial coherence by adjusting phase fluctuation ranges and beam sizes.

Main Results:

  • Successfully generated partially coherent light with a predefined and continuously modulated degree of coherence.
  • Demonstrated the ability to manipulate spatial coherence from fully coherent to fully incoherent states.

Conclusions:

  • Developed a straightforward metasurface-based strategy for manipulating light field coherence.
  • This approach enables flexible control over spatial coherence for advanced optical applications.