Time-Resolved Diffuse Optical Spectroscopy up to 1700 nm by Means of a Time-Gated InGaAs/InP Single-Photon Avalanche Diode

被引：52

作者：

Bargigia, Ilaria ^{[1
]}

Tosi, Alberto ^{[2
]}

Shehata, Andrea Bahgat ^{[2
]}

Della Frera, Adrian ^{[2
]}

Farina, Andrea ^{[3
]}

Bassi, Andrea ^{[1
]}

Taroni, Paola ^{[1
,3
]}

Dalla Mora, Alberto ^{[1
]}

Zappa, Franco ^{[2
]}

Cubeddu, Rinaldo ^{[1
,3
]}

Pifferi, Antonio ^{[1
,3
]}

机构：

[1] Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy

[2] Politecn Milan, Dipartimento Elettron & Informaz, I-20133 Milan, Italy

[3] CNR, Ist Foton & Nanotecnol, I-20133 Milan, Italy

来源：

APPLIED SPECTROSCOPY | 2012年 / 66卷 / 08期

关键词：

Time-resolved spectroscopy; Turbid media; Photon migration; Supercontinuum; Single-photon avalanche diode; SPAD; InGaAs/InP; TURBID MEDIA; FREQUENCY-DOMAIN; REFLECTANCE; TRANSMITTANCE; ABSORPTION; WATER; SCATTERING; RANGE; ICE;

D O I：

10.1366/11-06461

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present a new compact system for time-domain diffuse optical spectroscopy of highly scattering media operating in the wavelength range from 1100 nm to 1700 nm. So far, this technique has been exploited mostly up to 1100 nm: we extended the spectral range by means of a pulsed supercontinuum light source at a high repetition rate, a prism to spectrally disperse the radiation, and a time-gated InGaAs/InP single-photon avalanche diode working up to 1700 nm. A time-correlated single-photon counting board was used as processing electronics. The system is characterized by linear behavior up to absorption values of about 3.4 cm(-1) where the relative error is 17%. A first measurement performed on lipids is presented: the absorption spectrum shows three major peaks at 1200 nm, 1400 nm, and 1700 nm.

引用

页码：944 / 950

页数：7

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