Single Photon Counting Modules

The Excelitas family of Single-Photon Counting Modules (SPCMs) are self-contained modules that meet the low-light-level detection demands of confocal microscopy, fluorescence, luminescence, and TCSPC, particle sizing and Quantum Communications. Our SPCMs offer market-leading Photon Detection Efficiency (PDE), low after-pulsing, highest uniformity over the active area, high linear dynamic range, and low dark counts.

Interested in how Single Photon Detection has evolved over the years and into today's turn-key modules that provide simple, plug-and-run photon detection for OEMs and laboratories alike? Read our latest white paper

Excelitas' SPCMs are available to purchase online at Digi-Key.com - buy now for quick delivery!

Single Photon Counting Modules

Product List

Excelitas SPCM-AQ4C 4-channel Single-Photon Counting Module
Part Number
SPCM-AQ4C

SPCM-AQ4C

The SPCM-AQ4C is a four-channel photon counting module capable of detecting single photons of light over the wavelength range from 400 nm to 1060 nm. Each channel is independent from the others.
SPCM with optional bracket allowing the easy addition of a cage or tube-mount system for linking to the optical set-up.
Part Number
SPCM-AQRH-wx(-FC)

SPCM-AQRH

Excelitas' newly enhanced SPCM-AQRH Single-Photon Counting Module detects single photons over the wavelength range of 400 nm to 1064 nm with performance parameters superior to other solid state or vacuum-tube based photon counters.
Timing Resolution Optimized Single-Photon Counting Module
Part Number
SPCM-AQRH-WX-TR

SPCM-AQRH-TR

The Excelitas SPCM-AQRH-WX-TR is a Single Photon Counting Module of the latest product generation, specifically selected and performance-optimized for timing resolution. This family of –TR modules is designed to support applications in time-correlated single-photon counting (TCSPC), fluorescence lifetime measurements and fluorescence lifetime imaging microscopy (FLIM).
Excelitas SPCM-NIR with optional FC-connector optical input
Part Number
SPCM-NIR-wx with -FC or -BR1/2 Options

SPCM-NIR

The Excelitas SPCM-NIR is a Single-Photon Counting Module specifically selected and performance-optimized for the near infra-red wavelength spectrum. This NIR spectrum enhanced device is designed to support long range LiDAR, quantum communication and microscopy, as well as many other applications.