The technology of photon counters (photon counters) that we want to propose is the SPAD technology (Single Photon Avalanche Diode), based on fast and very sensitive diodes. The great advantage over PMT (Photo Multiplier tubes) is that SPADs have higher quantum efficiency and borader spectral range (from 300 nm to NIR), although the detection surface must be very small.
Although SPAD is a great tool for a large number of industrial and scientific applications, it is in the field of bioscience or life sciences where they shine the most: confocal microscopy, single-molecule spectroscopy, ultra-sensitive fluorescence, time-correlated single photon counting, DNA and drug detection,...
Other typical applications are particle sizing, time of flight (ToF), quantum cryptography, range finding Lidar-Ladar, etc.,...
We are distributors of Micro Photon Devices (MPD) in Spain and Portugal.