Programmable and reversible plasmon mode engineering

Ankun Yang, Alexander J. Hryn, Marc R. Bourgeois, Won Kyu Lee, Jingtian Hu, George C. Schatz, Teri W. Odom

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

Plasmonic nanostructures with enhanced localized optical fields as well as narrow linewidths have driven advances in numerous applications. However, the active engineering of ultranarrow resonances across the visible regime-and within a single system-has not yet been demonstrated. This paper describes how aluminum nanoparticle arrays embedded in an elastomeric slab may exhibit high-quality resonances with linewidths as narrow as 3 nm at wavelengths not accessible by conventional plasmonic materials. We exploited stretching to improve and tune simultaneously the optical response of as-fabricated nanoparticle arrays by shifting the diffraction mode relative to single-particle dipolar or quadrupolar resonances. This dynamic modulation of particle-particle spacing enabled either dipolar or quadrupolar latticemodes to be selectively accessed and individually optimized. Programmable plasmon modes offer a robust way to achieve real-time tunable materials for plasmon-enhanced molecular sensing and plasmonic nanolasers and opens new possibilities for integrating with flexible electronics.

Original languageEnglish
Pages (from-to)14201-14206
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume113
Issue number50
DOIs
Publication statusPublished - Dec 13 2016

Keywords

  • Flexible substrates
  • Lattice plasmons
  • Mode engineering
  • Nanoparticles
  • Plasmonics

ASJC Scopus subject areas

  • General

Fingerprint Dive into the research topics of 'Programmable and reversible plasmon mode engineering'. Together they form a unique fingerprint.

  • Cite this