Question

What is laser induced fluorescence spectroscopy

Answer 1

ANSWER
LASER INDUCED FLOURESCENCE SPECTROSCOPY-
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. Laser Induced Fluorescence was not originally developed for a commercial instrument but as a standalone laser spectroscopy.
LIF spectroscopy was first developed by Richard Zare in 1968 for the detection of atoms and molecules in the gas phase. Its potential as an analytical technique was quickly realised, as the fluorescence intensity is directly proportional to the concentration of the analyte in the linear power and concentration regime.