Time-domain diffuse optical spectroscopy is being applied with increasing success to study highly scattering media, mainly in the fields of non-invasive medical diagnostics and quality assessment of food and pharmaceutical products. The region beyond 1100 nm is still largely unexplored by time-domain techniques, probably due to the difficult combination of tunable pulsed sources and suitable single-photon detectors. We extend the spectral range up to 1700 nm thanks to a pulsed supercontinuum laser and a time-gated InGaAs/InP single-photon avalanche diode, with potential applications in medical diagnostics and in the study of scattering materials. A first application on collagen powder is shown.
InGaAs/InP Single Photon Avalanche Diode operated in gated mode for time-resolved diffuse optical spectroscopy up to 1700 nm
BARGIGIA, ILARIA;TOSI, ALBERTO;BAHGAT SHEHATA, ANDREA;DELLA FRERA, ADRIANO;FARINA, ANDREA;BASSI, ANDREA;TARONI, PAOLA;DALLA MORA, ALBERTO;ZAPPA, FRANCO;CUBEDDU, RINALDO;PIFFERI, ANTONIO GIOVANNI
2011-01-01
Abstract
Time-domain diffuse optical spectroscopy is being applied with increasing success to study highly scattering media, mainly in the fields of non-invasive medical diagnostics and quality assessment of food and pharmaceutical products. The region beyond 1100 nm is still largely unexplored by time-domain techniques, probably due to the difficult combination of tunable pulsed sources and suitable single-photon detectors. We extend the spectral range up to 1700 nm thanks to a pulsed supercontinuum laser and a time-gated InGaAs/InP single-photon avalanche diode, with potential applications in medical diagnostics and in the study of scattering materials. A first application on collagen powder is shown.| File | Dimensione | Formato | |
|---|---|---|---|
|
newSIF.pdf
Accesso riservato
:
Altro materiale allegato
Dimensione
9.86 kB
Formato
Adobe PDF
|
9.86 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
