Application of Diode Laser Molecular Absorption Spectroscopy for Studies of Gas Concentrations in Food Packages
When it comes to absorbing and emitting radiation, molecules show similar properties as atoms do. A signicant dierence though, is that a molecular spectrum consists of notably more absorption lines compared to an atomic spectrum. The additional lines appear due to the fact that molecules can not only exist in electronic, but also in vibrational and rotational energy states. Each gas has uniquely d