Two-Dimensional Active Tuning of an Aluminum Plasmonic Array for Full-Spectrum Response

Ming Lun Tseng, Jian Yang, Michael Semmlinger, Chao Zhang, Peter Nordlander, Naomi J. Halas*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

193 Scopus citations


Color pixels composed of plasmonic nanostructures provide a highly promising approach for new display technologies, capable of vivid, robust coloration and incorporating the use of low-cost plasmonic materials, such as aluminum. Here we report a plasmonic device that can be tuned continuously across the entire visible spectrum, based on integrating a square array of aluminum nanostructures into an elastomeric substrate. By stretching the substrate in either of its two dimensions, the period and therefore the scattering color can be modified to the blue or the red of the at-rest structure, spanning the entire visible spectrum. The unique two-dimensional design of this structure enables active mechanical color tuning, under gentle elastic modulation with no more than 35% strain. We also demonstrate active image switching with this structure. This design strategy has the potential to open the door for next-generation flexible photonic devices for a wide variety of visible-light applications.

Original languageEnglish
Pages (from-to)6034-6039
Number of pages6
JournalNano letters
Issue number10
StatePublished - 11 Oct 2017


  • active image switching
  • aluminum plasmonics
  • dynamic color display
  • full color display
  • full-color tuning
  • Stretchable plasmonics


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