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Related Concept Videos

Chirality in Nature02:30

Chirality in Nature

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Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid.
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Chirality02:25

Chirality

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Chirality is a term that describes the lack of mirror symmetry in an object. In other words, chiral objects cannot be superposed on their mirror images. For example, our feet are chiral, as the mirror image of the left foot, the right foot, cannot be superposed on the left foot.
Chiral objects exhibit a sense of handedness when they interact with another chiral object. For example, our left foot can only fit in the left shoe and not in the right shoe. Achiral objects — objects that have...
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Related Experiment Video

Updated: May 22, 2025

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
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Light-to-matter chirality transfer in plasmonics.

Eva Yazmin Santiago1, Muhammad Irfan1, Oscar Ávalos-Ovando2

  • 1CINBIO, University of Vigo, Campus Universitario de Vigo, Lagoas Marcosende, 36310 Vigo, Spain. lucas.v.besteiro@uvigo.es.

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|May 21, 2025
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Summary

Chiral light can induce chirality in plasmonic nanostructures, enabling new sensing and material applications. This light-to-matter chirality transfer offers a novel approach to creating chiral systems.

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Area of Science:

  • Nanoscale science
  • Optics
  • Materials science

Background:

  • Plasmonic nanostructures concentrate light energy, acting as nanoscale antennas.
  • Chirality is crucial for molecular recognition and advanced materials.
  • Plasmonic systems enhance chiroptical activity of chiral molecules and serve as platforms for chiral materials.

Purpose of the Study:

  • To introduce and explore light-to-matter chirality transfer in plasmonics.
  • To review existing techniques and discuss potential applications.
  • To contextualize this approach within light-matter interactions and chirality.

Main Methods:

  • Utilizing chiral light as the sole source of asymmetry for nanostructure fabrication.
  • Investigating local surface transformations driven by chiral excitation patterns.
  • Exploring energy-transfer mechanisms within plasmonic nanostructures.

Main Results:

  • Demonstration of chirality arising from local excitation patterns induced by chiral light.
  • Review of fabrication techniques, including top-down design and chiral molecule-directed growth.
  • Exploration of a nascent technique using chiral light for plasmonic nanostructure development.

Conclusions:

  • Light-to-matter chirality transfer presents a novel pathway for creating chiral plasmonic nanostructures.
  • This approach offers potential for enhanced sensing and the development of artificial chiral materials.
  • Further research into energy-transfer mechanisms can unlock new applications.