On-chip rayleigh imaging and spectroscopy of carbon nanotubes

Daniel Y. Joh, Lihong H. Herman, Sang Yong Ju, Jesse Kinder, Michael A. Segal, Jeffreys N. Johnson, Garnet K.L. Chan, Jiwoong Park

Research output: Contribution to journalArticlepeer-review

47 Citations (Scopus)


We report a novel on-chip Rayleigh imaging technique using wide-field laser illumination to measure optical scattering from individual single-walled carbon nanotubes (SWNTs) on a solid substrate with high spatial and spectral resolution. This method in conjunction with calibrated AFM measurements accurately measures the resonance energies and diameters for a large number of SWNTs in parallel. We apply this technique for fast mapping of key SWNT parameters, including the electronic-types and chiral indices for individual SWNTs, position and frequency of chirality-changing events, and intertube interactions in both bundled and distant SWNTs.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalNano letters
Issue number1
Publication statusPublished - 2011 Jan 12

All Science Journal Classification (ASJC) codes

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


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