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Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
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Foam as a self-assembling amorphous photonic band gap material.

Joshua Ricouvier1, Patrick Tabeling2, Pavel Yazhgur1

  • 1Microfluidique, MEMS et Nanostructures, Institut Pierre-Gilles de Gennes, Ecole Supérieure de Physique et de Chimie Industrielles de la Ville de Paris, CNRS, Paris Sciences et Lettres (PSL) Research University, 75005 Paris, France joshua.ricouvier@weizmann.ac.il pavel.yazhgur@unifr.ch.

Proceedings of the National Academy of Sciences of the United States of America
|April 26, 2019
PubMed
Summary

Disordered 2D foams serve as templates for photonic band gap (PBG) materials. Optimal dry foam structures with specific node and border arrangements maximize PBG properties for scalable photonic devices.

Keywords:
disordered photonic materialshyperuniformitymetamaterialsphotonic band gapself-assembly

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Photonics

Background:

  • Photonic band gap (PBG) materials control light propagation.
  • Self-assembled structures offer scalable fabrication routes.
  • Foam structures present unique architectures for photonic applications.

Purpose of the Study:

  • To investigate the use of 2D foams as self-assembled templates for photonic band gap (PBG) materials.
  • To determine the structural features of foams that are advantageous for opening large PBGs.
  • To optimize foam parameters for maximizing PBG properties in experimental systems.

Main Methods:

  • Utilized in-house experimental and simulated 2D foam structures.
  • Performed calculations to analyze PBG formation based on foam morphology.
  • Investigated the effect of dry versus wet foam transitions on PBG properties.
  • Tuned foam area fraction to optimize dielectric material quantity.

Main Results:

  • Slightly polydisperse disordered 2D foams can create isotropic PBG materials for transverse electric (TE) polarization.
  • Dry foam structures with threefold nodes and slender Plateau borders are optimal for large PBGs.
  • Transition to wet foam structures closes the PBG due to increased fourfold nodes and defect modes.
  • An optimal foam area fraction maximizes the PBG in experimental setups.

Conclusions:

  • Disordered 2D foams are effective self-assembled templates for PBG materials.
  • Foam structure, particularly node type and Plateau border geometry, critically influences PBG formation.
  • The findings can be extended to 3D foams for next-generation, scalable photonic devices.