Characteristics of nano-scale composites by THz spectroscopy

H. Altan, F. Huang, J. Federici, A. Lan, H. Grebel

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


We have conducted visible pump-THz probe experiments on single wall carbon nanotubes (SWCNTs) on quartz substrates. Our results suggest an upper limit to the carrier-lifetime, which is on the order 1.5ps, limited only by the THz pulse duration. These experiments were repeated for ion-implanted, 3-4nm Si nanoclusters in quartz for which the carrier lifetime was also assessed at 1.5ps. THz time-domain spectroscopy (THz-TDS) of SWCNTs revealed that the THz pulse peak transmission changed under optical illumination.

Original languageEnglish (US)
Pages (from-to)53-59
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 2003
EventTerahertz for Military and Security Applications - Orlando, FL, United States
Duration: Apr 21 2003Apr 21 2003

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


  • Si Nano Crystals
  • THz-TDS
  • Visible pump-THz probe


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