Terahertz spectrum analysis of leather at room temperature

Jiusheng Li; Jianquan Yao; Jianrui Li

doi:10.1117/12.819781

16 February 2009 Terahertz spectrum analysis of leather at room temperature

Jiusheng Li, Jianquan Yao, Jianrui Li

Proceedings Volume 7277, Photonics and Optoelectronics Meetings (POEM) 2008: Terahertz Science and Technology; 727704 (2009) https://doi.org/10.1117/12.819781
Event: Photonics and Optoelectronics Meetings, 2008, Wuhan, China

Abstract

Over the past ten years, electromagnetic terahertz (THz) frequencies region from 100 GHz to 10 THz (or wavelengths of 30 μm ~3 mm) have received extensive attention and investigation. Terahertz wave detection enables direct calculations of both the imaginary and the real parts of the refractive index without using the Kramers-Kronig relations. There are many potential applications such as radio astronomy, atmospheric studies, remote sensing, and plasma diagnostics. Shoes, neckties and sofa, etc are mainly made of skin of animal, imitated skin and artificial leather. It has important practical value to component analysis and quality assessment by measuring absorption, refractive index, and other optical parameters. In this paper, the spectral characteristics of sheepskin, imitated sheepskin and artificial leather have been measured with terahertz time-domain spectroscopy (THz-TDS) in the range of 0.1~2.0THz. The results show that there have not absorption peak in the absorption spectrum of the sheepskin. However, it is found that there are three absorption peaks in the absorption spectrum of the artificial leather at the frequency of 1.13THz, 1.21THz, and 1.36THz, respectively. The potential application of the leather in THz frequency region is also discussed.

Citation Download Citation

Jiusheng Li, Jianquan Yao, and Jianrui Li "Terahertz spectrum analysis of leather at room temperature", Proc. SPIE 7277, Photonics and Optoelectronics Meetings (POEM) 2008: Terahertz Science and Technology, 727704 (16 February 2009); https://doi.org/10.1117/12.819781

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