Spectroscopy Studies on Stream Sediments in the Terahertz Range - Optics and Photonics Journal

OPJ > Vol.6 No.8, August 2016

Spectroscopy Studies on Stream Sediments in the Terahertz Range ()

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DOI: 10.4236/opj.2016.68B024 1,583 Downloads 2,289 Views

Author(s)

Chen Chen^1,2, Jinsong Liu^1*, Jianquan Yao^1,3

Affiliation(s)

¹Wuhan National Laboratory for Optoelectronics, School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China.
²School of Physics and Optoelectronic Engineering, Yangtze University, Institute of Photoelectric Technology, Jingzhou, China.
³Institute of Laser and Opto-Electronics, School of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin , China.

ABSTRACT

In order to study stream sediments in the terahertz range, we have measured six reference stream sediment samples by terahertz time-domain spectroscopy (THz-TDS). We obtained the absorption coefficients and refractive indexes. By analyzing the spectra, we got different drops in amplitude and delays in time. The absorption and refractive properties of samples changed with its components and types. In addition, we also found there was a nearly linear relationship between the absorption coefficient and the frequency. We calculated the slope value (K) of each sample by linear fitting, and find the K was corresponding to the contents of the samples. The results showed THz-TDS was an effective method to the analysis of stream sediments.

KEYWORDS

Terahertz Time-Domain Spectroscopy, Stream Sediments, Absorption Coefficient, Refractive Index

Share and Cite:

Chen, C. , Liu, J. and Yao, J. (2016) Spectroscopy Studies on Stream Sediments in the Terahertz Range. Optics and Photonics Journal, 6, 145-149. doi: 10.4236/opj.2016.68B024.

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