[Error analysis and calibration method of complex spectrum of Fourier transform infrared spectrometer].
The phase shift in complex spectrum of Fourier transform infrared (FTIR) spectrometer was discussed. A rigorous derivation showed the relation between the phase shift and complex spectrum. The reason for the radiation offset in FTIR measurement was analysed. The present article presents a calibration method of FTIR complex spectrum, which can adjust the radiation offset. The comparison between experiment data and theoretical computation showed that the method is precise.
Zhang
Tian-shu
TS
Chinese Academy of Sciences, Anhui Institute of Optic and Fine Machines, Hefei 230031, China.
Liu
Wen-qing
WQ
Gao
Min-guang
MG
Lu
Yi-huai
YH
Liu
Jian-guo
JG
Xu
Liang
L
Zhu
Jun
J