User:KYPark/1917
- Zur Quantentheorie der Strahlung
- (On the Quantum Mechanics of Radiation)
- Physikalische Zeitschrift 18: 121–128
- ``In 1917 Albert Einstein, in his paper [...], laid the foundation for the invention of the laser and its predecessor, the maser [...].`` -- Laser#Foundations
- ``Before stimulated emission was discovered, novelists used to describe machines that we can identify as "lasers".
- The first fictional device similar to a military CO2 laser (see Heat-Ray) appears in the sci-fi novel The War of the Worlds by H. G. Wells in 1898.`` -- Laser#Fictional predictions
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