future technology: lasers
DESCRIPTION
Future technology presentation 12 comTRANSCRIPT
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1. History
2. Types of lasers
3. Future predictions
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In 1957, Charles Hard Townes and Arthur Leonard Schawlow, then at
Bell Labs, began a serious study of the infrared laser.
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As ideas were developed, infrared frequencies were abandoned with
focus on visible light instead.
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The concept was originally known as an "optical maser". Bell Labs filed a patent application for their
proposed optical maser a year later.
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Schawlow and Townes sent a manuscript of their theoretical
calculations to Physical Review, which published their paper that
year.
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•Chemical lasers
•Excimer lasers
•Solid-state lasers
•Fibre-hosted lasers
•Fiber disk laser
•Semiconductor lasers
•Dye lasers
•Free electron lasers
•Nuclear reaction lasers
•Photonic Crystal lasers
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Its said to be converted into highly dangerous weapons and also tools that would be used in
everyday life.
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