Physics of LASER

In Photobiomodulation the Photons are the most important molecules, which one may claim as a concentrated purified version of light. This is produced by the excitation of the electrons from a lower electron shell to a higher electron shell and when this exited electron comes back to a lower energy level it emits a photon this is also very specific in its physical properties such as each element used has a specific wavelength and thus produces a monochromatic light. It also has a stepwise pattern and follows one photon after another thus is also coherent, and as this follows a straight line LASER light is unidirectional. The production of LASER is done in a very dense electron cloud or lasing media to make enough photons to bounce in a double mirrored chamber such that there is an exiting monochromatic, single phased columnated light that has a specific wavelength (Monochromatic). The elements used for the Lasing media will deliver specific wavelength for e.g. Argon fluoride produces 193 nm, Krypton fluoride produces 248nm, Xenon chloride produces 308nm, Argon (blue) produces 488nm, Argon (green) produces 514nm, Helium neon (red) produces 633nm, Ruby red(CrAlO3) produces 694nm, Nd-Yag produces 1064 nm. (3)