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Proceedings Paper

Time-domain diffuse optics: towards next generation devices
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Paper Abstract

Diffuse optics is a powerful tool for clinical applications ranging from oncology to neurology, but also for molecular imaging, and quality assessment of food, wood and pharmaceuticals. We show that ideally time-domain diffuse optics can give higher contrast and a higher penetration depth with respect to standard technology. In order to completely exploit the advantages of a time-domain system a distribution of sources and detectors with fast gating capabilities covering all the sample surface is needed. Here, we present the building block to build up such system. This basic component is made of a miniaturised source-detector pair embedded into the probe based on pulsed Vertical-Cavity Surface-Emitting Lasers (VCSEL) as sources and Single-Photon Avalanche Diodes (SPAD) or Silicon Photomultipliers (SiPM) as detectors. The possibility to miniaturized and dramatically increase the number of source detectors pairs open the way to an advancement of diffuse optics in terms of improvement of performances and exploration of new applications. Furthermore, availability of compact devices with reduction in size and cost can boost the application of this technique.

Paper Details

Date Published: 16 July 2015
PDF: 4 pages
Proc. SPIE 9538, Diffuse Optical Imaging V, 95380A (16 July 2015); doi: 10.1117/12.2183693
Show Author Affiliations
Davide Contini, Politecnico di Milano (Italy)
Alberto Dalla Mora, Politecnico di Milano (Italy)
Simon Arridge, Univ. College London (United Kingdom)
Fabrizio Martelli, Univ. degli Studi di Firenze (Italy)
Alberto Tosi, Politecnico di Milano (Italy)
Gianluca Boso, Politecnico di Milano (Italy)
Andrea Farina, Istituto di Fotonica e Nanotecnologie, CNR (Italy)
Turgut Durduran, ICFO - Institut de Ciències Fotòniques (Spain)
Edoardo Martinenghi, Politecnico di Milano (Italy)
Alessandro Torricelli, Politecnico di Milano (Italy)
Antonio Pifferi, Politecnico di Milano (Italy)
Istituto di Fotonica e Nanotecnologie, CNR (Italy)


Published in SPIE Proceedings Vol. 9538:
Diffuse Optical Imaging V
Hamid Dehghani; Paola Taroni, Editor(s)

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