Phase shift measurement of the THz wave with laser displacement sensor

Author

Saito, Shingo ; Sekine, Norihiko ; Hosako, Iwao ; Sakai, Kiyomi

Author_Institution

Nat. Inst. of Inf. & Commun. Technol., Kobe

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

1

Lastpage

2

Abstract

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.

Keywords

measurement by laser beam; phase shifters; submillimetre wave detectors; submillimetre wave measurement; submillimetre waves; THz-TDS reflection signal; laser displacement sensor; phase shift measurement; position reproducibility; spectral amplitude; submillimetre wave; wave reflection measurement; Displacement measurement; Mirrors; Optical pulse generation; Optical pulse shaping; Optical pulses; Optical reflection; Phase measurement; Pulse measurements; Reproducibility of results; Surface emitting lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

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

Conference_Location

Pasadena, CA

Print_ISBN

978-1-4244-2119-0

Electronic_ISBN

978-1-4244-2120-6

Type

conf

DOI

10.1109/ICIMW.2008.4665771

Filename

4665771