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Blue Gallium Nitride Laser:

 

Why are blue lasers important:

Blue (violet) GaN based semiconductor lasers allow to store information with about 4 times higher density than red semiconductor lasers. Blu-Ray DVDs use blue GaN based lasers to read and write information to the Blu-Ray disks.

 

Blue (violet) GaN lasers have many other applications in medicine, engineering, and technology.

 

Who invented GaN blue lasers:

Shuji Nakamura developed the first commercially viable blue lasers based on GaN at Nichia Chemical Industries in Anan (Shikoku, Japan). His work continued and expanded previous work by Isamu Akasaki (at Nagoya University) and Jacques Pankove (at RCA Labs in the 1970s).

 


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