Time Correlated Single Photon Counting
Time Correlated Single Photon Counting in bulk solutions has and continues to be a workhorse of our long term research into synthetic electron- and charge-transfer systems. The continued development of these systems will lead to the next generation of cheap and durable plastics based optical materials for a myriad applications including display technology, optical switching and energy storage for computing, solar cells and protection from photodegradation, to name a few. TCSPC is powerful tool for determining fluorescence lifetimes on a nanosecond to millisecond timescale. When combined with our cavity-dumped femtosecond oscillator the repition rate can be optimised for the shortest collection time.
Figure 1. Experimental apparatus for TCSPC measurements in bulk solutions for determining fluorescence lifetimes on a ns timescale. BS = beam splitter, BD = beam dump, Mono = monochrometer, MCP = Multi Channel Plate, CFD = constant fraction discriminator, TAC = time to amplitude converter, ADC = analogue to digital converter.