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Lasers - Coggle Diagram
Lasers
LaSer light
Spatialcoherence
Signal phase
Constant amplitude
Very NNarow bandwidth
Diffraction limited Spread
Opération
Continuous
Steady pump source
Not possible for very high Powers
Pulsed
Uses often nerf high power
Laser ablation
We apons
Sharks
Low pluse rate
High énergie with low power
History
Maser
Microwave laser
1953,charLes townes
Laser
Columbia U.
1953.Gordon Gould
Invented laser term
Energy source
Design
Feedback
Through mirror
Optical cavity
Not Always required
Gain meduim
Physics
electrons in discrete level
Pomping raises electrons to higher levels
Very spicitifs wavelengths
Light
Amplification by
Stimulated
Émission of
Radiation
Abbou Ikram /G1
Chaib Nour el imane /G21