A Survey of Effective Factors on Mental Health A Study on the Physical Properties of Laser and Its Effects on Tissue

Light Amplification by Stimulated Emission of Radiation or LASER is used as a tool for producing a monochromatic light with radiance on a solid unit angleLASER light is convergent with lowest divergence and has had high densit‑v ener‑gy area units. Physical components of laser include an active material in which alk. inversion process occurred. Light photons that are produced by stimulatk‑~n intensifier chamber transfer the space between two mirrors frequently during ‑bib they have a contact with stimulated atoms or molecules. This process causes i i emission and finally the intensity of light increases significantly. Energy, source xx pumps the space ascends the electrons to a higher level of energy Many qshowed that laser beam causes many physiological and biochemisterie changes in components, so the light could be absorbed in mitochondria and cell membe after that the reduction process could be activated in cellular respiratory chain. changes in respiratory chain, free radical productions in the cell will increase w has a lot of etTects on cellular procedures. Considering the fact for curing various diseases in ophthalmology, different lwhave been applied and its contact with different tissues with different irradi creates photochemical, thermal, and ionization which can have dillerent side efrom on the tissue