In Fourier transform spectroscopy, path di erence dependent misalignments, such as those due to imperfect me-chanical movement of the scanning mirror, can be modelled as path di erence dependent apodisation and phase errors.The theoretical model that relates the mirror drive characteristics to the path di erence dependent error is used to verifythe consistency of the optical instrument line shape with the measurements of the mechanical drive quality. Thisprocedure can be used as a diagnostic and qualiÆcation tool.
Characterisation of instrumental line shape distortions due to path difference dependent phase errors in a Fourier transform spectrometer
G Bianchini;P Raspollini
2000
Abstract
In Fourier transform spectroscopy, path di erence dependent misalignments, such as those due to imperfect me-chanical movement of the scanning mirror, can be modelled as path di erence dependent apodisation and phase errors.The theoretical model that relates the mirror drive characteristics to the path di erence dependent error is used to verifythe consistency of the optical instrument line shape with the measurements of the mechanical drive quality. Thisprocedure can be used as a diagnostic and qualiÆcation tool.File in questo prodotto:
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Descrizione: Characterisation of instrumental line shape distortions due to path difference dependent phase errors in a Fourier transform spectrometer
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