Applied Physics I: Chapter 10: Applied Optics - Lasers
Flow Chart for basic requirement of laser action
The flow chart for the laser action is as shown in Fig.
FLOW CHART FOR BASIC
REQUIREMENT OF LASER ACTION
The
flow chart for the laser action is as shown in Fig. 10.9. Initially by some
means of pumping process atoms in the active medium are allowed to go from
ground state to excited states and hence the population inversion is achieved.
At
this stage, a spontaneously emitted photon, so called stimulating photon incident
on the excited atoms in the active medium and initiates the stimulated
emission.
The
light emitted due to stimulated emission, stimulates more number of atoms in
the active medium to come from the excited state to the ground state and hence
more number of photons are emitted from the active medium. Thus amplification
of light begins.
This
amplified light travels back and forth between the 100% mirror and the partial
mirror in the optical resonator and hence an intense amplified beam of light,
so called LASER is emitted through the partial mirror.
Applied Physics I: Chapter 10: Applied Optics - Lasers : Tag: Applied Physics : - Flow Chart for basic requirement of laser action
Applied Physics I: Chapter 10: Applied Optics - Lasers
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