What is it about?

Gold is a noble metal that naturally reflects a yellowish color because its refractive index, and related optical properties. However, when this material is structured at the nanometer scale, additional properties appear (the localized surface plasmons LSP), which give rise to a wide variety of reddish colors.

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Why is it important?

The transition between the golden color of gold, the signature of the bulk, and the reddish color of the nanostructures, is a property that depends on the size of the gold nanoparticles. Understanding how this transition occurs provides a tool for precise light control.


Writing this article was a great pleasure. We would like to be able to collaborate with researchers interested in this topic.

Western Institute of Technology and Higher Education, ITESO AC

Read the Original

This page is a summary of: Chromatic limits of color filters based on gold nanostructure arrays: The role of surface plasmon and bulk contributions, AIP Advances, December 2023, American Institute of Physics,
DOI: 10.1063/5.0173072.
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