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Updated: Mar 7, 2026
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Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
Published on: June 2, 2017
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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
Researchers developed magnetoresponsive photonic Janus particles with tunable structural color. These particles offer on-demand control for advanced active color pigments in displays.
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.
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