Optics and Nonlinear Buckling Mechanics in Large-Area, Highly Stretchable Arrays of Plasmonic Nanostructures

Li Gao, Yihui Zhang, Hui Zhang, Sage Doshay, Xu Xie, Hongying Luo, Deesha Shah, Yan Shi, Siyi Xu, Hui Fang, Jonathan A. Fan, Peter Nordlander, Yonggang Huang, John A. Rogers

Research output: Contribution to journalArticlepeer-review


Large-scale, dense arrays of plasmonic nanodisks on low-modulus, high-elongation elastomeric substrates represent a class of tunable optical systems, with reversible ability to shift key optical resonances over a range of nearly 600 nm at near-infrared wavelengths. At the most extreme levels of mechanical deformation (strains >100%), nonlinear buckling processes transform initially planar arrays into three-dimensional configurations, in which the nanodisks rotate out of the plane to form linear arrays with "wavy" geometries. Analytical, finite-element, and finite-difference time-domain models capture not only the physics of these buckling processes, including all of the observed modes, but also the quantitative effects of these deformations on the plasmonic responses. The results have relevance to mechanically tunable optical systems, particularly to soft optical sensors that integrate on or in the human body.

Original languageEnglish (US)
Pages (from-to)5968-5975
Number of pages8
JournalACS Nano
Issue number6
StatePublished - Jun 23 2015
Externally publishedYes


  • large-area nanodisk array
  • nanoscale buckling
  • stretchable plasmonics
  • wide-band tunability

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)


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