Characteristics of nanoscale composites by THz spectroscopy

Date

2004-02-27

Author

Altan, Hakan
Federici, John F
Lan, Aidong
Grebel, Haim

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We have conducted visible pump-THz probe experiments on single wall carbon nanotubes (SWCNTs) deposited on quartz substrates. Our results suggest that the photoexcited nanotubes exhibit localized transport due to Lorentz-type photo-induced localized states. These experiments were repeated for ion-implanted, 3-4nm Si nanoclusters in quartz for which a similar behavior was observed.

Subject Keywords

Visible pump-THz probe, THz-TDS, Si nano crystals, SWCNT

URI

https://hdl.handle.net/11511/37530

DOI

https://doi.org/10.1117/12.519503

Collections

Department of Physics, Conference / Seminar

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Characteristics of nanoscale composites by terahertz spectroscopy Altan, Hakan; Federici, John F; Lan, Aidong; Grebel, Haim (2003-07-29) 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 illumina...
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Citation Formats

H. Altan, J. F. Federici, A. Lan, and H. Grebel, “Characteristics of nanoscale composites by THz spectroscopy,” 2004, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37530.