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Related Experiment Video

Updated: Mar 21, 2026

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
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Published on: September 27, 2011

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Nano- and Micro-Auxetic Plasmonic Materials.

João Valente1, Eric Plum1, Ian J Youngs2

  • 1Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK.

Advanced Materials (Deerfield Beach, Fla.)
|May 5, 2016
PubMed
Summary

Researchers created nanoscale plasmonic auxetics, materials that expand when stretched. This breakthrough combines unique optical properties with nanoscale auxetic mechanical behavior, opening new avenues for advanced materials.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Physics

Background:

  • Plasmonic nanostructures offer unique optical properties.
  • Auxetic materials exhibit a negative Poisson ratio, expanding laterally when stretched.
  • Integrating these properties at the nanoscale presents significant challenges.

Purpose of the Study:

  • To demonstrate plasmonic nanostructures with a negative Poisson ratio (auxetic behavior).
  • To achieve significant size reduction of auxetic structures using nanomembrane technology.
  • To combine nanoscale auxetic mechanical properties with plasmonic metamaterial optical characteristics.

Main Methods:

  • Fabrication of plasmonic nanostructures.
  • Application of nanomembrane technology for size reduction.
Keywords:
auxeticsmetamaterialsnanomechanical devicesplasmonics

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  • Characterization of mechanical and optical properties.

    • Main Results:

    • Successful demonstration of plasmonic nanostructures exhibiting auxetic behavior (negative Poisson ratio).
    • Auxetic structures were shrunk by orders of magnitude using nanomembrane technology.
    • Simultaneous access to nanoscale auxetic mechanical properties and plasmonic metamaterial optical properties was achieved.

    Conclusions:

    • The study presents a novel class of materials combining plasmonic and auxetic functionalities at the nanoscale.
    • Nanomembrane technology is effective for miniaturizing auxetic structures.
    • These hybrid nanostructures hold potential for applications in advanced optics and mechanics.