Highly tunable infrared extinction properties of gold nanocrescents

Rostislav Bukasov, Jennifer S. Shumaker-Parry

Research output: Contribution to journalArticlepeer-review

261 Citations (Scopus)


The infrared extinction properties of gold nanocrescents fabricated using nanosphere template lithography were studied. The nanocrescents exhibit multiple, structurally tunable localized surface plasmon resonances (LSPRs) across a broad spectral range (560-3600 nm). Plasmon resonances in the infrared have large extinction efficiencies of ∼20 and peaks as narrow as 0.07 eV. The nanocrescents also have high refractive index sensitivities (370-880 nm/RIU) that are proportional to the LSPR wavelengths. The sensing figure of merit measured for ensembles of nanocrescents is as high as 2.4 for near-infrared plasmon resonances.

Original languageEnglish
Pages (from-to)1113-1118
Number of pages6
JournalNano Letters
Issue number5
Publication statusPublished - May 1 2007

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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