Plasmonic-Photonic Mode Coupling in Indium-Tin-Oxide Nanorod Arrays

Shi Qiang Li, Peijun Guo, D. Bruce Buchholz, Wei Zhou, Yi Hua, Teri W. Odom, J. B. Ketterson, Leonidas E. Ocola, Kazuaki Sakoda, Robert P.H. Chang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


We present a systematic study of light scattering from indium-tin-oxide (ITO) nanorods in the near-infrared with a special focus on the resonant coupling of plasmonic transverse mode and photonic modes in 2-D periodic arrays. Using theoretical analysis combined with simulations, a set of experiments has been designed to study such interactions. Near-field mapping from the simulations shows a strong interaction of localized surface plasmon resonances (LSPR) with a photonic resonance; together they explain the scattering phenomenon observed in our experiments carried out in the far field. We observed the shift of LSPR as the plasma frequency was varied, resulting in a modification of the spectral shape. Utilizing the high aspect ratios of the ITO nanorods, the LSPR strength can be turned on and off by the polarization of the incident light. (Graph Presented).

Original languageEnglish (US)
Pages (from-to)163-172
Number of pages10
JournalACS Photonics
Issue number3
StatePublished - Mar 19 2014


  • Bragg resonance
  • degenerated semiconductor
  • nanophotonics
  • optically induced transparency
  • plasmonic crystal
  • transparent conducting oxide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biotechnology
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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