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The Laser Turns 50

06/19/2010 12:46AM

The Laser Turns 50

The idea of a LASER (Light Amplification by Stimulated Emission of Radiation) was first contemplated by Albert Einstein when he proposed the theory of stimulated light emission in 1917. It wasn't until more than 40 years later, in 1958, that work by Charles Townes and Arthur Schawlow at Bell Telephone Laboratories (BTL) in New Jersey on the MASER (Microwave Amplification by Stimulated Emission of Radiation) led to Theodore Maiman, at Hughes Research Laboratories in California, building the first ruby Laser in 1960. Maiman's creation was met with an underwhelming response and was described as a solution looking for a problem. Today, on the laser's fiftieth birthday, physicists assert that the discovery's usefulness has much further to go, despite already underpinning some of the last half century's most disruptive technologies (not least, the optical fibers that make today's high speed internet possible).


Comments:

  • tmnathe [Tom Nathe]
  • 06/20/2010 07:00AM
Yikes! This dates me. I was at the Smithsonian Museum when they had the 10th anniversary exhibit (think I was 12 or 13). I still remember them melting melting small blocks of granite with an IR laser and a holograph of a speed boat hanging in mid air. Pretty heady stuff.

  • crw4096 [Charles Wright]
  • 06/23/2010 01:50PM
As someone who works in a world filled with acronyms, it has always amused me to think that the LASER didn't have to be called a LASER. Consider that instead of the emphasis on Amplification, the inventors <i>could</i> have chosen to emphasize the Oscillation property...<br><br> <img class='' src='http://new.astromart.com/astromart/javascripts/sceditor/emoticons/grin.png' alt='grin' title='grin'/>