Radiometric and signal-to-noise ratio properties of multiplex dispersive spectrometry

Recent theoretical investigations have shown important radiometric disadvantages of interferential multiplexing in Fourier transform spectrometry that apparently can be applied even to coded aperture spectrometers. We have reexamined the methods of noninterferential multiplexing in order to assess t...

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Published inApplied optics. Optical technology and biomedical optics Vol. 49; no. 28; p. 5366
Main Authors Barducci, Alessandro, Guzzi, Donatella, Lastri, Cinzia, Nardino, Vanni, Marcoionni, Paolo, Pippi, Ivan
Format Journal Article
LanguageEnglish
Published United States 01.10.2010
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Summary:Recent theoretical investigations have shown important radiometric disadvantages of interferential multiplexing in Fourier transform spectrometry that apparently can be applied even to coded aperture spectrometers. We have reexamined the methods of noninterferential multiplexing in order to assess their signal-to-noise ratio (SNR) performance, relying on a theoretical modeling of the multiplexed signals. We are able to show that quite similar SNR and radiometric disadvantages affect multiplex dispersive spectrometry. The effect of noise on spectral estimations is discussed.
ISSN:2155-3165
DOI:10.1364/AO.49.005366