In this paper a novel method, based on time-resolved diffuse optical spectroscopy, is proposed to measure the absorption of small amounts of nanostructured powder materials independent of scattering. Experimental validation, in the visible and near-infrared spectral range, has been carried out on India Ink particles. The effectiveness of the technique to measure scattering-free absorption is demonstrated on carbon nanotubes. The comparison between the absorption spectra acquired by the proposed method and conventional measurements performed with a commercial spectrophotometer is discussed.

Absorption spectroscopy of powdered materials using time-resolved diffuse optical methods

D'ANDREA, COSIMO;FARINA, ANDREA;TARONI, PAOLA;LANZANI, GUGLIELMO;PIFFERI, ANTONIO GIOVANNI
2012-01-01

Abstract

In this paper a novel method, based on time-resolved diffuse optical spectroscopy, is proposed to measure the absorption of small amounts of nanostructured powder materials independent of scattering. Experimental validation, in the visible and near-infrared spectral range, has been carried out on India Ink particles. The effectiveness of the technique to measure scattering-free absorption is demonstrated on carbon nanotubes. The comparison between the absorption spectra acquired by the proposed method and conventional measurements performed with a commercial spectrophotometer is discussed.
2012
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/689458
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