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Applied Spectroscopy

Applied Spectroscopy


  • Vol. 67, Iss. 1 — Jan. 1, 2013
  • pp: 36–39

A Novel Method of Terahertz Spectroscopy and Imaging in Reflection Geometry

Wei-En Lai, Huai-Wu Zhang, Yao-Hua Zhu, and Qi-Ye Wen

Applied Spectroscopy, Vol. 67, Issue 1, pp. 36-39 (2013)

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In reflection geometry of terahertz spectroscopy, the biological sample is usually placed on a sample window. This paper presents a novel method for eliminating the effect of the ringing, i.e., the interference between reflections of the reference and the sample, and from the air-window and sample-window interfaces, respectively. In the proposed method, a special thickness of substrate is designed to acquire an accurate reference reflection. The reflections of the samples of deionized water and ethanol were examined, and the calculation of optical properties of the samples by using our proposed method agrees with standard data. The main advantages of this method are simplicity, accuracy, and ease of application for reflection systems with different incident angles.

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Wei-En Lai, Huai-Wu Zhang, Yao-Hua Zhu, and Qi-Ye Wen, "A Novel Method of Terahertz Spectroscopy and Imaging in Reflection Geometry," Appl. Spectrosc. 67, 36-39 (2013)

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