TY - GEN
T1 - Measurement and Research of Liquid Transmission Spectrum Based on Continuous-wave Terahertz Spectroscopy
AU - Guo, Sujie
AU - Kong, Deyin
AU - Ruan, Cunjun
AU - Zhang, Yan
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - Terahertz frequency-domain spectroscopy (THZ-TDS) and terahertz time-domain spectroscopy (THz-FDS) are two important methods for the material feature detection in terahertz band. In our research, the terahertz frequency-domain spectroscopy based on the continuous-wave and coherent detection is used to acquire the terahertz spectrum of liquid samples in a customized rectangle cell. The transfer matrix method is used to remove the oscillation generated by the Fabry-Pérot interferometer caused by cell wall, thereby dielectric constants of liquids can be extracted successfully. With the Hilbert transformation to get the amplitude and phase, the high frequency resolution of 14 MHz can be achieved. Then the refractive index of the liquid sample cyclohexane is obtained with the frequency range 0.1 - 1.7 THz. The results show that our terahertz frequency-domain spectroscopy has high potential for measurement and analysis in the terahertz band.
AB - Terahertz frequency-domain spectroscopy (THZ-TDS) and terahertz time-domain spectroscopy (THz-FDS) are two important methods for the material feature detection in terahertz band. In our research, the terahertz frequency-domain spectroscopy based on the continuous-wave and coherent detection is used to acquire the terahertz spectrum of liquid samples in a customized rectangle cell. The transfer matrix method is used to remove the oscillation generated by the Fabry-Pérot interferometer caused by cell wall, thereby dielectric constants of liquids can be extracted successfully. With the Hilbert transformation to get the amplitude and phase, the high frequency resolution of 14 MHz can be achieved. Then the refractive index of the liquid sample cyclohexane is obtained with the frequency range 0.1 - 1.7 THz. The results show that our terahertz frequency-domain spectroscopy has high potential for measurement and analysis in the terahertz band.
UR - https://www.scopus.com/pages/publications/85081996075
U2 - 10.1109/PIERS-Spring46901.2019.9017588
DO - 10.1109/PIERS-Spring46901.2019.9017588
M3 - 会议稿件
AN - SCOPUS:85081996075
T3 - Progress in Electromagnetics Research Symposium
SP - 3058
EP - 3063
BT - 2019 PhotonIcs and Electromagnetics Research Symposium - Spring, PIERS-Spring 2019 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 PhotonIcs and Electromagnetics Research Symposium - Spring, PIERS-Spring 2019
Y2 - 17 June 2019 through 20 June 2019
ER -