SEARCH Articles Figures Tables Basic Principles of Laser Diffraction Chemical lasers, principles Confocal scanning laser microscopy principle Excimer lasers, principles Femtosecond laser pulses, uncertainty principle Femtosecond lasers, principles Fundamental Principles of Lasers General Principles Two-, Three- and Four-level Lasers Laser phase Doppler principle Matrix-assisted laser desorption ionization principle Principle of laser-drying Principles of laser-induced fluorescence spectroscopy Ruby laser, principles Semiconductor lasers, principles The Basic Principles of Lasers The Laser Principle Time-resolved quasi-elastic laser scattering principle