[Study on terahertz spectroscopy of Hotan jade].
Terahertz time-domain spectroscopy (THz-TDS) technique has a wide range of applications including illicit drugs and explosive detection, and organic molecules recognition. In the present paper, the spectral features of three kinds of Hotan jade were studied experimentally by THz-TDS technique and the characteristic absorption spectra and refractive index were obtained in the range of 0.2 to 2.6 THz. The experimental results show that different samples have different absorption characters, and the refractive index is 2.4-2.7 in the range of 0.2-2.6 THz. The results indicate that it is feasible to apply THz-TDS technique to identification of Hotan jade, which provides a new approach to the nondestructive examination of Hotan jade.
Department of Physics, Capital Normal University, Beijing 100048, China.
Maimaitiming
Ainiwaer
Wei
W
Xiong
Xue-jiao
XJ
Guo
Jing-ling
JL
Shen