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Updated: Apr 7, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Instant Photonic Crystals with a Flap.

Feng Gao¹, Junjun Qiu¹, Tong An¹

¹State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.

|November 10, 2025

Summary

This summary is machine-generated.

We developed a rapid method to create high-quality photonic crystals using colloidal particles and simple shear. This sustainable approach accelerates fabrication by up to a million times, enabling scalable production of structural color materials.

Keywords:

colloids oscillatory shear photonic crystal rapid assembly structural color

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Area of Science:

Materials Science
Nanotechnology
Photonics

Background:

Colloidal particle-assembled photonic crystals offer sustainable alternatives for structural color.
Commercial use is hindered by low optical quality and slow fabrication processes.

Purpose of the Study:

To develop a rapid and scalable fabrication method for high-quality photonic crystals.
To investigate the use of matrix materials and particle volume fraction for accelerated assembly.

Main Methods:

Embedding colloidal particles in matrix materials (glycerol, honey).
Applying oscillatory shear (hand-flapping, roll-to-roll) for rapid structure formation.
Analyzing assembly mechanisms under shear and varying parameters.

Main Results:

Fabrication time accelerated by 10^2-10^6 times compared to traditional methods.
Achieved uniform photonic crystals with sharp reflectance peaks (>90%).
Single shear oscillations (0.05-0.5 s) produced highly ordered structures.

Conclusions:

Rapid, scalable photonic crystal fabrication is achievable using oscillatory shear.
Matrix material selection and particle volume fraction are key parameters for efficient assembly.
This method provides a practical pathway for commercializing sustainable structural color materials.