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in 1917 Einstein proposed the fundamental theory that established the idea of lasers. He proposed that light doesn't absorb or emit spontaneously but can be stimulated to certain wavelengths.
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In 1954, Charles Townes, James P. Gordon, and Herbet J. Zeiger develop the first MASER (microwave amplification by the stimulated emission of radiation) which was a precursor to the LASER. http://www.photonics.com/Article.aspx?AID=42279
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In 1956, Nicholas Bloemberg first developed the Solid State Maser, which was a ruby maser that is eerily similar to the early optical lasers. (Ruby Maser Image Not Found, have the Hydrogen Maser instead.)
http://www.photonics.com/Article.aspx?AID=42279 -
In 1960, Thomas H. Maiman develops the first optical MASER using a synthetic ruby cylinder measuring 1 cm in diameter and 2 cm long with silver sheets on the ends http://www.photonics.com/LinearChart.aspx?ChartID=2
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These multiple different kinds of lasers are developed in this order
1. HeNe Laser (1961)
2. Neodymium Glass Laser (1961)
3. Gallium Arsenic Laser (1962)
4. Yttrium Aluminum Laser (1962)
5. Red Light Semiconductor Laser (1962)
6. Neodymium-doped Laser (1964)
7. Co2 Laser (1964)
8. Pulsed Argon Ion Laser (1964)
9. Chemical Laser (1965)
10. Dye Laser (1966)
11. Excimer Laser (1970)
12. Quantum Well Laser (1972) http://www.photonics.com/LinearChart.aspx?ChartID=2 -
Dr. Charles J. Campbell performs the first treatment of a human using a LASER device in order to destroy a retinal tumor.
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Barcode's are first officially used in stores and the first ever item to be scanned on a barcode is a pack of Wrigley's chewing gum.
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LaserDisc has little to no impact on the market but, it started the idea of CD's which led to modern technology. http://www.gizmohighway.com/history/laserdisc.htm
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- Quantum Cascade Laser (1994)
- Single Atom Laser (1994)
- Pulsed Atom Laser (1996)
- Gallium-Nitride Laser (1997)
- Electrically Powered Silicon Hybrid Silicon Laser (2006)
- Mode Locked Silicon Evanescent Laser (2007)
- Multibeam IR emitting Lasers (2009)
- Short Pulse Laseres (2010)