Organizational Structure . A mplification by the S timulated E mission of R adiation . Properties of Laser Light . How Lasers Work Energy source pumps electrons in lasing medium to a certian energy level. Photons are emitted.
Light waves bounce back and forth between the mirrors on the resonator.
Output mirror reflects part of the light and outputs the rest. Gas Lasers Collision of atoms results in a resonant collision. Excited and unexcited atoms collide. Population inversion occurs, and amplification results. Schematic of a CW Gas Laser .