What is Laser Induced Fluorescence?

Laser Induced Fluorescence (LIF) is an optical spectroscopic technique where a sample is excited with a laser, and the fluorescence emitted by the sample is subsequently captured by a photodetector.

LIF can be understood as a class of fluorescence spectroscopy where the usual lamp excitation is replaced by a laser source. Whilst lasers are now routinely used as excitation sources in photoluminescence spectrometers, Laser Induced Fluorescence was not originally developed for a commercial instrument but as a standalone laser spectroscopy technique.

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