TF-LIF, Time-resoved LIF, laser-induced Fluorescence

Time-resolved laser-induced fluorescence (TR-LIF) utilising a nanosecond (ns) pulse laser constitutes a sensitive spectroscopic technique employed for the analysis of material composition and dynamics through the monitoring of fluorescence over time. In this method, a short laser pulse (typically a few nanoseconds in duration) is employed to excite the sample, thereby promoting electrons to higher energy states. As these excited electrons return to their ground state, they emit fluorescence, which is then detected and analysed. By measuring the intensity of this fluorescence as a function of time after the excitation pulse, researchers can extract information about fluorescence lifetimes, quenching processes, and the local chemical environment of the fluorophores.

Uv-vis fluorescence time-decay spectroscopy

23/04/2025