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Proceedings Paper

Application of terahertz time-domain spectroscopy technology on cosmetics testing
Author(s): Xinfeng Jia; Bin Yu; Guozhong Zhao
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Paper Abstract

As a new technology, the terahertz technology had made a great progress in security inspection and medical field. This paper shows the application of the terahertz time-domain spectroscopy (THz-TDS) technology on cosmetic testing. We obtain the THz spectra of three kinds of usual cosmetics powders. Two kind of powder have an obvious absorption peak at 1.14 THz, but the third one has no absorption peak. The positions of absorption peaks in the infrared spectra of three kinds of powders are approximately identical. These results show that THz-TDS technology has the advantage and potential application on the cosmetic testing. In addition, we also measure some solid and liquid cosmetic components, such as Titanium-dioxide, Magnesium Stearate, Kaolin, Glycerol, etc. THz spectra of their refractive index and absorption coefficient are obtained experimentally. We are trying to establish the fingerprint spectra database of cosmetic components for further research and application.

Paper Details

Date Published: 4 January 2008
PDF: 6 pages
Proc. SPIE 6840, Terahertz Photonics, 68400H (4 January 2008); doi: 10.1117/12.759877
Show Author Affiliations
Xinfeng Jia, Capital Normal Univ. (China)
Bin Yu, Capital Normal Univ. (China)
Guozhong Zhao, Capital Normal Univ. (China)

Published in SPIE Proceedings Vol. 6840:
Terahertz Photonics
Cunlin Zhang; Xi-Cheng Zhang, Editor(s)

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