[Analysis of collimation error in Fourier transform infrared spectrometer based on step mirrors].

@article{L2011AnalysisOC,
  title={[Analysis of collimation error in Fourier transform infrared spectrometer based on step mirrors].},
  author={Jin-guang L{\"u} and Zhong-zhu Liang and Jian-guo Fu and Jing-qiu Liang},
  journal={Guang pu xue yu guang pu fen xi = Guang pu},
  year={2011},
  volume={31 10},
  pages={2865-9}
}
The collimation error in Fourier transform spectrometer has many effects on the interferogram and the spectrogram. By means of modulation, the authors found the reverse of contrast in the interferogram and the side slope noise in the spectrogram due to the collimation error. The authors analyzed the signal-to-noise ratio and resolution at different factor of beam divergence. When the factor of the beam divergence is 0.15 degrees x mm(-1), the signal-to-noise ratio can reduce to 6 dB and the… CONTINUE READING

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