Title :
Phase measurement of tunable CW-THz radiation at multiple frequencies based on photoconductive mixing with terahertz frequency comb
Author :
Fujio, Makoto ; Nakamura, Ryotaro ; Yokoyama, Shuko ; Yasui, Takeshi ; Araki, Tsutomu
Author_Institution :
Osaka Univ., Toyonaka, Japan
Abstract :
We demonstrate the phase measurement of a tunable CW-THz radiation at multiple frequencies. The error of the phase measurement with is less than 1 degree at each frequency under correction of the cyclic error. We further applied this method for the absolute distance measurement of a target.
Keywords :
distance measurement; phase measurement; submillimetre wave measurement; absolute distance measurement; cyclic error; phase measurement; photoconductive mixing; terahertz frequency comb; tunable CW-THz radiation; Antenna measurements; Error correction; Frequency; Optical interferometry; Optical mixing; Optical scattering; Phase measurement; Photoconductivity; Principal component analysis; Wavelength measurement;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5324718
