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http://dx.doi.org/10.3807/KJOP.2014.25.2.072

Terahertz Time-Domain Spectroscopy and Imaging using Compact Fiber-coupled Terahertz Modules  

Yoon, Young-Jong (THz Photonics Creative Research Center, ETRI)
Kim, Namje (THz Photonics Creative Research Center, ETRI)
Ryu, Han-Cheol (Department of Car Mechatronics, Sahmyook University)
Moon, Kiwon (THz Photonics Creative Research Center, ETRI)
Shin, Jun-Hwan (THz Photonics Creative Research Center, ETRI)
Han, Sang-Pil (THz Photonics Creative Research Center, ETRI)
Park, Kyung Hyun (THz Photonics Creative Research Center, ETRI)
Publication Information
Korean Journal of Optics and Photonics / v.25, no.2, 2014 , pp. 72-77 More about this Journal
Abstract
We have demonstrated a terahertz (THz) time-domain spectroscopy and imaging system using compact fiber-coupled THz modules. Using this THz spectroscopy system we have measured the absorption spectrum of water vapor in free space over 3 THz, as well as the refractive indices of various substrates such as Si, $Al_2O_3$, and GaAs using the transfer-function method. Through the THz imaging system we have observed a high-quality THz image of a medical knife and metal clip sample, with a resolution of $192{\times}89$ pixels using a step size of 250 ${\mu}m$.
Keywords
THz time domain spectroscopy(THz-TDS); Refractive index; THz image detection;
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Times Cited By KSCI : 1  (Citation Analysis)
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