Characteristics of nano-scale composites by THz spectroscopy

被引：1
|
作者：
Altan, H [1 ]
Huang, F [1 ]
Federici, J [1 ]
Lan, A [1 ]
Grebel, H [1 ]
机构：
[1] New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA
来源：
TERAHERTZ FOR MILITARY AND SECURITY APPLICATIONS | 2003年 / 5070卷
关键词：
SWCNT; Si Nano crystals; THz-TDS; visible pump-THz probe;
D O I：
10.1117/12.506898
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
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.
引用
收藏
页码：53 / 59
页数：7
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