Title :
Development of a high-speed spectroscopic imaging system over a wide frequency range with THz-TDS
Author :
Kitagishi, Keiko ; Akagi, Motonobu ; Izutani, Yusuke ; Oishi, Yoshihiko
Author_Institution :
Otsuka Electron. Co. Ltd., Hirakata, Japan
Abstract :
A THz-TDS imaging system has been newly designed. It covers a wide frequency range between 0.1 and 7 THz by using a DAST crystal as a THz-wave source. Since a delay stage slides at high speed with a high degree of accuracy, the waveform is reproducible. The data processing is efficient with the data acquisition at 100 MHz. A spectroscopic image of 20×20 pixels can be obtained in approximately 3 min with the resolution of 15 GHz.
Keywords :
data acquisition; delays; image resolution; terahertz spectroscopy; terahertz wave imaging; DAST crystal; THz-TDS imaging system; THz-time-domain spectroscopy imaging system; THz-wave source; data acquisition; data processing; delay stage; frequency 0.1 THz to 7 THz; frequency 100 MHz; high-speed spectroscopic imaging system; Crystals; Delay; Fiber lasers; Imaging; Laser beams; Switches; Ultrafast electronics;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105010
