A SPAD-based hybrid system for time-gated fluorescence measurements

Alberto Gola; Lucio Pancheri; Claudio Piemonte; David Stoppa

doi:10.1117/12.883381

13 May 2011 A SPAD-based hybrid system for time-gated fluorescence measurements

Alberto Gola, Lucio Pancheri, Claudio Piemonte, David Stoppa

Proceedings Volume 8033, Advanced Photon Counting Techniques V; 803315 (2011) https://doi.org/10.1117/12.883381
Event: SPIE Defense, Security, and Sensing, 2011, Orlando, Florida, United States

Abstract

A hybrid system, composed of a SPAD fabricated in a dedicated detector technology coupled to a CMOS readout ASIC, is presented. The SPADs under test have an active area of 380 μm², while the ASIC is built in a 0.35 μm CMOS technology and has 16 readout channels, each one featuring an active quenching circuit and four time-gated 8-bit counters, with programmable gate duration. In the paper we will discuss the Dark Count Rate, Gain and Afterpulsing Probability performances with respect to relevant system parameters, such as Overvoltage, Off Time and Precharge Time, as well as FLIM measurements with the system.

Citation Download Citation

Alberto Gola, Lucio Pancheri, Claudio Piemonte, and David Stoppa "A SPAD-based hybrid system for time-gated fluorescence measurements", Proc. SPIE 8033, Advanced Photon Counting Techniques V, 803315 (13 May 2011); https://doi.org/10.1117/12.883381

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