Glossary
- Laser: acronym of : « light amplification by stimulated emission of radiation » ; device emitting spatially and temporally coherent light radiation based on the stimulated emission
- Gaussian beam: beam with a gaussian distribution of intensity in the plane perpendicular to the direction of propagation - fundamental transverse mode of a laser
- Intensity ( physical optics ): local parameter proportional to the average energy or power of a light wave per unit area
- Relative intensity: normalized intensity as determined by the ratio between the intensity and its maximum value