Enhancement of measurement speed and photon economy in multiphoton detected fluorescence lifetime imaging microscopy

摘要

The Analog mean delay (AMD) method is a multiphoton detection fluorescence lifetime measurement method. We have investigated the effect of the linearity of a photodetector response on the performance of the AMD method, which is a multiphoton detected fluorescence lifetime measurement method. A Monte-Carlo simulation scheme was adapted to generate various electronic signals for the AMD method with different linearity conditions of a photodetector. It is found that the photon economy is better if a photodetector with better linearity is used especially when the number of detected photons per pulse is low.