Title :
Differential imaging using a THz-wave parametric oscillator
Author :
Minamide, Hiroaki ; Kawase, Kodo ; Imai, Kazuhiro ; Ito, Hiromasa
Author_Institution :
Photodynamics Res. Center, RIKEN, Sendai, Japan
Abstract :
We demonstrate THz-wave imaging using a widely tunable THz-wave parametric oscillator. Two Si-bolometer detectors were used to obtain stable measurements. The imaging system was controlled by a PC using the program Labview. The targets of the THz-wave imaging were a T-shaped piece of polyethylene and a P-shaped piece of Teflon within an envelope that was opaque for visible light. We obtained clear images at 1.6 and 1.8 THz. Moreover, a unique differential image was successfully derived from the difference between the 1.6 and 1.8 THz images.
Keywords :
bolometers; computerised instrumentation; parametric oscillators; submillimetre wave imaging; submillimetre wave oscillators; submillimetre wave spectroscopy; tuning; 1.6 THz; 1.8 THz; Labview program; P-shaped Teflon; PC-controlled system; Si; Si bolometer detectors; T-shaped polyethylene; THz-wave imaging; THz-wave parametric oscillator; differential imaging; stable measurements; tunable source; Biomedical imaging; Frequency; Laser excitation; Laser tuning; Light scattering; Mirrors; Optical imaging; Optical pulse generation; Oscillators; Tunable circuits and devices;
Conference_Titel :
Terahertz Electronics Proceedings, 2002. IEEE Tenth International Conference on
Print_ISBN :
0-7803-7630-7
DOI :
10.1109/THZ.2002.1037616
