Related terms:
spontaneous emission
population inversion
schawlow
optical amplification
optical maser
laser medium
optical cavity
lasing
fel
excited state
gain medium
townes
maser
spectral line
energy level
ground state
uncertainty principle
coherent
emitted
photon
laser
Wikipedia sources:
Laser
Population inversion
Stimulated emission
Maser
Optical amplifier
Laser diode
Photon
Atomic spectral line
Free electron laser
Spontaneous emission
Context for words:
stimulated
emission
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