Light Amplification by Stimulated Emission of Radiation, or Laser, is an instrument which generates and emits a high intensity beam of light .The light generated by a laser is produced by nuclear mechanisms (mechanisms which generate energy within the cell). It has a number of unique and desirable characteristics (e.g. the intensity of the light rays), but it also poses a health risk.
Light emitted from a laser encompasses a range of wavelengths the light spectrum and includes: