Fully automated time domain spectrometer for the absorption and scattering characterization of diffusive media (Articolo in rivista)

Type
Label
  • Fully automated time domain spectrometer for the absorption and scattering characterization of diffusive media (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Pifferi, A; Torricelli, A; Taroni, P; Comelli, D; Bassi, A; Cubeddu, R (2007)
    Fully automated time domain spectrometer for the absorption and scattering characterization of diffusive media
    in Review of scientific instruments
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pifferi, A; Torricelli, A; Taroni, P; Comelli, D; Bassi, A; Cubeddu, R (literal)
Pagina inizio
  • 053103 (literal)
Pagina fine
  • -10 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 78 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR, INFM, ULTRAS, I-20133 Milan, Italy; Politecn Milan, CNR, IFN, I-20133 Milan, Italy; Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy (literal)
Titolo
  • Fully automated time domain spectrometer for the absorption and scattering characterization of diffusive media (literal)
Abstract
  • We describe a system for absorption and scattering spectroscopy of diffusive media based on time-resolved reflectance and transmittance measurements. The system is operated with mode-locked lasers tunable in the 550-1050 nm spectral range and on a detection chain based on time-correlated single-photon counting. All measurement procedures such as laser tuning and optimization, signal conditioning, data acquisition, and analysis are completely automated, permitting spectral measurements over the whole range in a few minutes. The criticalities of the system are discussed together with the strategies to compensate them. The Medphot protocol devised for the characterization of photon migration instruments was applied to assess the system performances in terms of accuracy, linearity, noise, stability, and reproducibility. Finally, an example of application of the instrument to the spectroscopy of powders is presented. (C) 2007 American Institute of Physics. (literal)
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