PML-16‑GaAsP devices are 16-channel TCSPC detectors with highly efficient GaAsP cathodes. Signal recording is based on bh’s multi-dimensional TCSPC process. For every photon, the detector delivers a timing pulse and the number of the channel that detected the photon. From this information, the TCSPC module builds up a photon distribution over the times of the photons in the signal period and the channel number. The results is a set of individual optical signal waveforms for the 16 channels of the detector.
The PML-SPEC-GaAsP and MW-FLIM-GaAsP devices are combinations of the PML-16‑GaAsP detectors with a polychromator. The polychromator splits the optical signal into its spectral components. These are detected by the 16 channels of the detector. The results is a set of optical waveforms for 16 wavelength channels. The PML-SPEC has a free-beam or an optical-fibre input, the MW-FLIM has a fibre-bundle input for connecting to non-descanned ports of multiphoton microscopes. All detectors connect directly to the bh TCSPC modules or the bh Simple-Tau systems, see below. The PML-16 GaAsP, PML-SPEC GaAsP, and MW-FLIM GaAsP detectors are about 6 times more sensitive than their PML-16C predecessors with conventional cathodes. A comparison is shown in the figures below. For more information please see Multi-Spectral Detectors.