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Ruby Laser, by T. H. Maiman, 1960
National Ignition Facility, Lawrence Livermore Lab 1.8MJ, 192 Lasers
106J fired every second106W = 10,000 100W lightbulbsEnough to supply 3000 households
E
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h
absorption emission Stimulated emission
iE
fEMirrorMirror
Laser beam
After several round trips…
Photons with: - same energy : Monochromatic- same direction of propagation : Spatial coherence- all in synchrony: Temporal coherence
QuickTime™ and aTIFF (Uncompressed) decompressor
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QuickTime™ and aTIFF (Uncompressed) decompressor
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