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Related Experiment Video

Updated: Mar 7, 2026

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

Published on: June 2, 2017

Magnetoresponsive Photonic Microspheres with Structural Color Gradient.

Seung Yeol Lee¹, Jongkook Choi², Jong-Ryul Jeong³

¹Department of Chemical and Biomolecular Engineering, KAIST, Daejeon, 34141, South Korea.

Advanced Materials (Deerfield Beach, Fla.)

|February 7, 2017

Summary

This summary is machine-generated.

Researchers developed magnetoresponsive photonic Janus particles with tunable structural color. These particles offer on-demand control for advanced active color pigments in displays.

Keywords:

bandgaps color gradients microspheres photonic crystals structural colors

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Area of Science:

Materials Science
Nanotechnology
Photonics

Background:

Structural color in photonic particles offers vibrant, angle-independent hues.
Controlling particle orientation is key for tunable optical properties.

Purpose of the Study:

To create magnetoresponsive photonic Janus particles with a structural color gradient.
To enable on-demand control over particle orientation and structural color using magnetic fields.

Main Methods:

Alternately sputtering silica and titania onto microspheres.
Rendering microspheres magnetoresponsive.
Utilizing optical and magnetic anisotropy for controlled manipulation.

Main Results:

Successfully fabricated photonic Janus particles with a structural color gradient.
Demonstrated on-demand control of particle orientation and color via external magnetic fields.
Achieved tunable structural color through magnetic manipulation.

Conclusions:

Photonic Janus particles with optical and magnetic anisotropy are effective active color pigments.
Magnetic field manipulation provides precise control over structural color for display applications.
This technology advances the development of tunable, responsive display materials.