Fast-gated single-photon counting technique widens dynamic range and speeds up acquisition time in time-resolved measurements

被引：87

作者：

Tosi, Alberto ^{[1
]}

Dalla Mora, Alberto ^{[2
]}

Zappa, Franco ^{[1
,5
]}

Gulinatti, Angelo ^{[1
]}

Contini, Davide ^{[2
]}

Pifferi, Antonio ^{[2
,3
,4
]}

Spinelli, Lorenzo ^{[4
]}

Torricelli, Alessandro ^{[2
,3
]}

Cubeddu, Rinaldo ^{[2
,3
,4
]}

机构：

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

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

[3] Politecn Milan, IIT Res Unit, I-20133 Milan, Italy

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

[5] Micro Photon Devices Srl, I-39100 Bolzano, Italy

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 11期

关键词：

AVALANCHE PHOTODIODES; DISCRIMINATION; DETECTOR; TISSUE; LIGHT;

D O I：

10.1364/OE.19.010735

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In many time-domain single-photon measurements, wide dynamic range (more than 5 orders of magnitude) is required in short acquisition time (few seconds). We report on the results of a novel technique based on a time-gated Single-Photon Avalanche Diode (SPAD) able to increase the dynamic range of optical investigations. The optical signal is acquired only in well-defined time intervals. Very fast 200-ps gate-ON transition is used to avoid the undesired strong signal, which can saturate the detector, hide the fainter useful signal and reduce the dynamic range. In experimental measurements, we obtained a dynamic range approaching 8 decades in few minutes of acquisition. (C) 2011 Optical Society of America

引用

页码：10735 / 10746

页数：12

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