Laser & Optoelectronics Progress, Volume. 48, Issue 12, 123001(2011)
Research Progress of Rapid Scan Terahertz Time Domain Spectroscopy System
It is noteworthy that terahertz time-domain spectroscopy (THz-TDS) has been pioneered as a spectral measurement tool, which has drawn much attention in the field of terahertz (THz) wave. Conventional THz-TDS systems employ a stepped delay line for their optical delay line scan and utilize lock-in amplifier (LIA) for the acquisition of THz signals. In this approach, the speed of THz signals sampling is too slow to be introduced into some applications which require a high-speed performance. And the THz waveforms can be acquired in rapid scan THz-TDS system. Therefore, numerous practical applications for THz-TDS systems can be entered much more easily. In this review, we describe the technique for rapid scan THz-TDS and illustrate the various implementations of the technique with recent domestic and oversea examples. In addition, an improved method for rapid scan is proposed.
Get Citation
Copy Citation Text
Liu Wenquan, Lu Yuanfu, Feng Guangzhi, Gong Xiaojing, Yang Jun, Zhang Yandong, Jin Lei. Research Progress of Rapid Scan Terahertz Time Domain Spectroscopy System[J]. Laser & Optoelectronics Progress, 2011, 48(12): 123001
Category: Reviews
Received: Aug. 8, 2011
Accepted: --
Published Online: Oct. 11, 2011
The Author Email: Wenquan Liu (wq.liu@siat.ac.cn)