Open AccessSpectral transfer function of the Fourier transform spectral imager
Author(s) -
Bin Xiangli,
Yan Yuan,
Lue Qun-bo
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.5399
Subject(s) - interferometry , optical transfer function , michelson interferometer , optics , fourier transform , transfer function , spectral envelope , physics , fourier transform spectroscopy , spectrometer , spectral imaging , spectral resolution , spectral line , fourier transform infrared spectroscopy , electrical engineering , quantum mechanics , engineering , astronomy
The spectral transfer function of the imaging spectrometer is defined on the basis of the linear system theorem. The spectral transfer functions including spectral modulation transfer functions and the spectral phase transfer functions of the temporally modulated Fourier transform spectral imager based on Michelson interferometer and those of the spatially modulated Fourier transform spectral imagers based on Sagnac interferometer,Fresnel interferometer, and Lloyd interferometer are deduced. These spectral transfer functions could be regarded as an objective criteria in the spectral domain of spectral imagers. Together with the well known optical transfer function, the performance of the imaging spectrometer could be described comprehensively.