Photon counting solutions

SPCMs have extremely high single-photon detection efficiency, and are much more sensitive than the PMT in the visible range. These modules contain a discrete APD detector and utilise the advantages of this APD to give excellent performance as single photon counters at very low light levels.

Avalanche photodiodes (APDs) provide higher sensitivity than standard photodiodes. Also ideal for extremely low-level detection and photon counting, APDs are generally recommended for high bandwidth applications or where internal gain is needed to overcome high preamplifier noise. APDs can be found in the Specialist Detectors section.

Excelitas has now discontinued their range of Silicon Photomultipliers (SIPMs), including the LynX. Please contact us to explore how Single Photon Counting Modules (SPCMs) may offer an alternative solution.

Single Photon Counting Modules – Excellent performance at very low light levels