08/19/2008 • Microscopy / Imaging

Multichannel TCSPC System

Picoquant announced a new multichannel Picosecond Event Timer and Time-Correlated Single Photon Counting system (TCSPC) with USB interface. The device is based on a time digitizer with 1 picosecond resolution, a processing rate of 12.5 million counts per second per channel, a very short dead time and an extremely low differential non-linearity. The Hydraharp 400 provides unique new features, notably a modular design with up to four identical input channels and a common sync channel. All channels operate independently, but with a common crystal time base. Therefore, not only TCSPC histograms for the measurement of fluorescence decays, but also picosecond coincidence correlations across all channels can be obtained. The latter is of great interest in single molecule work and quantum information processing research.

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