Three-channel spectrometer for wide-field imaging of anisotropic plasmonic nanoparticles

Christina M. Sweeney, Colleen L. Nehl, Warefta Hasan, Taiyang Liang, Amanda L. Eckermann, Thomas J. Meade, Teri W. Odom

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A three-channel spectrometer (3CS) based on a commercial digital camera was developed to distinguish among tens of large (>100 nm), anisotropic plasmonic particles with various shapes, orientations, and compositions on a surface simultaneously. Using band-pass filters and polarizers, we could enhance the contrast of 3CS images to identify specific orientation and composition characteristics of gold and gold-silver nanopyramids as well as the direction of the longest arm of gold nanostars.

Original languageEnglish
Pages (from-to)15933-15937
Number of pages5
JournalJournal of Physical Chemistry C
Issue number32
Publication statusPublished - Aug 18 2011

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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