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Proceedings Paper

Frequency domain NIR measurements with optical fibers: limits and perspectives
Author(s): Renzo Salimbeni; G. Marconi; Roberto Pini; Matteo Vannini
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Paper Abstract

NIR spectroscopy and imaging are having an increasing interest as not invasive diagnostics, for the evolution experienced in the last years by both instrumentation technology and interpretation models. In the frequency domain, the informative content of the diffusive photons waves is primarily limited by the approximation of the reconstruction algorithm, according to the measurement precision of the whole diagnostic apparatus. In this work, the influence of optical fiber delivery and collection systems has been studied, to determine signal amplitudes and phase errors, according to refractive effects at the coupling areas, and to propagation effects as intermodal dispersion induced by bending and other mechanical instabilities of the fibers.

Paper Details

Date Published: 18 August 1997
PDF: 4 pages
Proc. SPIE 2979, Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II, (18 August 1997); doi: 10.1117/12.280303
Show Author Affiliations
Renzo Salimbeni, Istituto di Elettronica Quantistica (Italy)
G. Marconi, Istituto di Elettronica Quantistica (Italy)
Roberto Pini, Istituto di Elettronica Quantistica (Italy)
Matteo Vannini, Istituto di Elettronica Quantistica (Italy)


Published in SPIE Proceedings Vol. 2979:
Optical Tomography and Spectroscopy of Tissue: Theory, Instrumentation, Model, and Human Studies II
Britton Chance; Robert R. Alfano, Editor(s)

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