| SPAD | Single-photon avalanche diode |
| FLIM | Fluorescence lifetime imaging microscopy |
| EMCCD | Electromultiplied charge-coupled device |
| SNR | Signal-to-noise ratio |
| PRNU | Photo-response non-uniformity |
| DCR | Dark count rate |
| PDP | Photon detection probability |
| PDE | Photon detection efficiency |
| BPAE | Bovine pulmonary artery endothelial cells |
| DAPI | 4′,6-Diamidino-2-phenylindole |
| IRF | Instrumentation response function |
| TCSPC | Time-correlated single photon counting |
| ENOB | Effective number of bits |
| ICG | Indocyanine green |