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Phase shift measurement of the THz wave with laser displacement sensor

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4 Author(s)
Saito, S. ; Nat. Inst. of Inf. & Commun. Technol., Kobe ; Sekine, N. ; Hosako, I. ; Sakai, K.

It is an advantage of THz-TDS measurement that we can obtain not only the spectral amplitude of THz wave but the phase information without any assumptions. But, it has a difficulty in the position reproducibility of the reference mirror and sample in THz wave reflection measurement. We introduced a laser displacement sensor in order to get the reproducibility of position and measured the THz-TDS reflection signal under the position reproducibility of several micron meter.

Published in:

Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on

Date of Conference:

15-19 Sept. 2008