In time-correlated single photon counting (TCSPC), single photons are not only counted, but the time of detection is also determined based on a reference signal. Here, a laser pulse generally serves as a reference. This method is a statistical counting method.
LASER COMPONENTS now offers a single photon counting module for time correlated applications: The COUNT® T is equipped with an avalanche photodiode (active area of 150 μm) produced in house and features a high detection efficiency of >80% and a temporal resolution of up to 350 ps.
In addition to fluorescence lifetime measurement (FLIM), the timing module is used in time-resolved fluorescence and single-molecule spectroscopy, as well as LIDAR applications.
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