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Proceedings Paper

Terahertz spectroscopy of sub-wavelength size metallic particles
Author(s): Zhen-wei Zhang; Yu-ping Yang; Zhi-yi Liu; Yan Zhang; Cun-lin Zhang
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Paper Abstract

The terahertz wave transmission through ensembles of sub-wavelength size metallic particles is studied by THz-TDS and finite different time domain (FDTD). The result of the experiment shows that with the increase of the thickness of the sample, the terahertz pulses experience significant attenuation, delay and broadening. In addition, an obvious red-shift and narrowing of the amplitude spectrum are observed. Numerical simulations based on FDTD are performed to explain the details of the data and lead to an excellent agreement with the experimental results. Furthermore, the relation between the size of the particles and the transmission properties of terahertz radiation is analyzed.

Paper Details

Date Published: 5 August 2009
PDF: 8 pages
Proc. SPIE 7385, International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications, 73852A (5 August 2009); doi: 10.1117/12.836551
Show Author Affiliations
Zhen-wei Zhang, Capital Normal Univ. (China)
Yu-ping Yang, Minzu Univ. (China)
Zhi-yi Liu, Minzu Univ. (China)
Yan Zhang, Capital Normal Univ. (China)
Cun-lin Zhang, Capital Normal Univ. (China)


Published in SPIE Proceedings Vol. 7385:
International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications
X.-C. Zhang; James M. Ryan; Cun-lin Zhang; Chuan-xiang Tang, Editor(s)

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