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J Electromagn Eng Sci > Volume 10(3); 2010 > Article
Journal of the Korean Institute of Electromagnetic and Science 2010;10(3):158-165.
DOI: https://doi.org/10.5515/JKIEES.2010.10.3.158   
Terahertz Time Domain Spectroscopy, T-Ray Imaging and Wireless Data Transfer Technologies
Mun-Cheol Paek, Min-Hwan Kwak, Seung-Beom Kang, Sung-Il Kim, Han-Cheol Ryu, Sang-Kuk Choi, Se-Young Jeong, Dae-Won Kang, Dong-Suk Jun, Kwang-Yong Kang
Terahertz Research Team, Electronics and Telecommunications Research Institute
Abstract
This study reviewed terahertz technologies of time domain spectroscopy, T-ray imaging, and high rate wireless data transfer. The main topics of the terahertz research area were investigation of materials and package modules for terahertz wave generation and detection, and setup of the terahertz system for time domain spectroscopy(TDS), T-ray imaging and sub-THz wireless communication. In addition to Poly-GaAs film as a photoconductive switching antenna material, a table-top scale for the THz-TDS/imaging system and terahertz continuous wave(CW) generation systems for sub-THz data transfer and narrow band T-ray imaging were designed. Dielectric properties of ferroelectric BSTO($Ba_xSr_{1-x}TiO_3$) films and chalcogenide glass systems were characterized with the THz-TDS system at the THz frequency range. Package modules for terahertz wave transmitter/receiver(Tx/Rx) photoconductive antenna were developed.
Key words: T-ray Imaging, Terahertz Wave, Time Domain Spectroscopy, Femtosecond Laser, CW THz Wireless Communication
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