LASER COMPONENTS’ COUNT series of photon counting modules has been developed to offer a combination of high quantum efficiency, wide dynamic range and ease of use for photon counting applications. Combining our ultra-low-noise avalanche photodiodes with specially developed quenching and signal processing electronics, the COUNT series offers everything needed for single photon detection from 350 - 1000nm.
From the original COUNT module, offering detection efficiency in the red, the family has grown to include the COUNT BLUE and the COUNT NIR with the former offering detection efficiency in the blue and green and the latter offering performance at 810nm.
Also available in the COUNT family is the COUNT S - a passively quenched module featuring a larger active area for a low cost alternative to the original COUNT module and the COUNT T - specifically designed for time-correlated single photon counting applications. The COUNT T both detects and records the time of detection from a reference signal.