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Proceedings Paper

Terahertz spectrum of Acesulfame-K
Author(s): Haiyan Wang; Guozhong Zhao; Liming Liu; Bo Wei
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Paper Abstract

Terahertz time-domain spectroscopy (THz-TDS) is a new coherent spectral technique. The spectral characteristics of Acesulfame-K in the range of 0.2-2.6THz had been measured with THz-TDS. We obtained its transmission spectrum, refractive index spectrum and absorption spectrum at room temperature in the nitrogen atmosphere. The results show that Acesulfame-K had the abnormal dispersions at 0.40THz, 0.66THz, 0.94THz, 1.79THz and 2.30THz. The vibration absorption spectrum of single molecule of Acesulfame-K is simulated based on the Density Functional Theory (DFT). It is found that Acesulfame-K has the obvious absorbance in THz region. This result shows that THz-TDS has a potential application in the field of food security.

Paper Details

Date Published: 4 November 2010
PDF: 7 pages
Proc. SPIE 7854, Infrared, Millimeter Wave, and Terahertz Technologies, 78540C (4 November 2010); doi: 10.1117/12.868905
Show Author Affiliations
Haiyan Wang, Capital Normal Univ. (China)
Key Lab. of Terahertz Optoelectronics (China)
Guozhong Zhao, Capital Normal Univ. (China)
Key Lab. of Terahertz Optoelectronics (China)
Liming Liu, Capital Normal Univ. (China)
Key Lab. of Terahertz Optoelectronics (China)
Bo Wei, Capital Normal Univ. (China)
Key Lab. of Terahertz Optoelectronics (China)


Published in SPIE Proceedings Vol. 7854:
Infrared, Millimeter Wave, and Terahertz Technologies
Cunlin Zhang; Xi-Cheng Zhang; Peter H. Siegel; Li He; Sheng-Cai Shi, Editor(s)

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