Rice-Sized Laser? Wrong, It’s a “Maser”

January 16, 2015 5:31 PM

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Princeton University’s tiny microwave laser is being called a “maser” while being powered by single electrons.

Technically, the “maser” is being powered by single electrons that are tunneled through quantum dots, and requires about one-billionth of the electric current one would need to make toast in the morning. The researchers built the tiny laser to gain a better understanding of how quantum dots might be...

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