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Related Experiment Video

Updated: Dec 14, 2025

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Published on: May 20, 2013

Electrically tunable directional light scattering from soft thin membranes.

Leihao Chen, James J C Busfield, Federico Carpi

|July 19, 2020

Summary

This summary is machine-generated.

This study introduces a novel smart material technology for electrically controlling light scattering in specific directions. This innovation enables dynamic light shaping and tunable transparency for advanced optical devices.

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Last Updated: Dec 14, 2025

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Light-Induced In Situ Transmission Electron Microscopy for Observation of the Liquid-Soft Matter Interaction

Light-Induced In Situ Transmission Electron Microscopy for Observation of the Liquid-Soft Matter Interaction

Published on: July 26, 2022

Area of Science:

Materials Science
Optics
Nanotechnology

Background:

Controllable light scattering is crucial for tunable transparency and diffusion filters.
Existing methods alter light scattering isotropically, lacking directional control.
Smart materials offer potential for dynamic, anisotropic optical property modulation.

Purpose of the Study:

To present the first smart-material-based technology for directionally tunable light scattering.
To demonstrate electrical modulation of scattering in single or multiple selected directions.
To develop anisotropic light diffusers and tunable transparency surfaces.

Main Methods:

Utilizing thin soft membranes coated with transparent PEDOT:PSS.
Employing dielectric elastomer actuation for electrically induced membrane deformation along specific axes.
Inducing anisotropic scattering through the formation of directionally controlled surface wrinkles.

Main Results:

Demonstrated electrically tunable, anisotropic light scattering in mono- and bi-directional devices.
Developed a bi-directional device by overlapping independently controlled, orthogonally shifted layers.
Achieved a significant electrical reduction in optical transmittance from 75% to 4% in prototypes.

Conclusions:

The developed technology enables dynamic, directional control over light scattering using smart materials.
The bi-directional device showcases independent control over scattering directions.
Potential applications include electrically controllable anisotropic light diffusers and tunable transparency surfaces.