Real-time terahertz time-domain spectroscopy based on asynchronous optical sampling

K. Moon, Y. Han, E. Jung, M. Lim, C. Im, H. Han
2009 2009 34th International Conference on Infrared, Millimeter, and Terahertz Waves  
A real-time terahertz time-domain spectroscopy (THz-TDS) system based on the ASOPS technique was demonstrated. The THz TDS system had a maximum time delay of 10 ns, corresponding to a 3 m-long time delay, and a maximum frequency resolution of 100 MHz. For single-scanning measurements, we demonstrated real-time THz measurements in both time and frequency domains. The typical signal-to-noise ratio (SNR) was better than 60 ~ 70 dB within 50 s.
doi:10.1109/icimw.2009.5325534 fatcat:fphmox3hijasnh5gug6aicwshm