|Thesis abstract: |
Nowadays many optical techniques in different research and industrial fields need to efficiently detect single photons with high efficiency, low timing jitter and high count rate. For the near-infrared wavelength range (up to 1.7 µm), single-photon detection based on InGaAs/InP SPADs is the enabling technology for new practical instruments and methods. Since SPAD front-end electronics plays a key role for attaining high detection performance, the primary goal of this research activity is to develop new wide-band electronic solutions for the best operation of InGaAs/InP SPAD. These circuits will progressive migrate from discrete components to custom made integrated circuits, thus reducing parasitic elements, improving temporal response and, eventually, opening the way for practical use of arrays of InGaAs/InP SPADs. Also data acquisition and processing play very important roles and custom solutions will be investigated for the various applications that will be developed in collaboration with other world-leader research groups.