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 Optical Society of America
Full Article | PDF ArticleMore Like This
Hui Xia, Caixia Miao, Jianwei Cheng, Shaohua Tao, Ruyi Pang, and Xiaoyun Wu
Appl. Opt. 51(16) 3263-3268 (2012)
Lorenzo Spinelli, Fabrizio Martelli, Andrea Farina, Antonio Pifferi, Alessandro Torricelli, Rinaldo Cubeddu, and Giovanni Zaccanti
Opt. Express 15(11) 6589-6604 (2007)
Cosimo D'Andrea, Austin Nevin, Andrea Farina, Andrea Bassi, and Rinaldo Cubeddu
Appl. Opt. 48(4) B87-B93 (2009)