The single-electron transistor is a kind of newly found fascinating device in recent years.

单电子晶体管是几年前才发现的一种功能奇特的新型器件。

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Firstly, we introduce the background of single-electron device the single-electron basic phenomenon, the orthodox theory.

本论文首先介绍了单电子器件的出现背景，介绍了单电子学的正统理论。

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In addition, since a single electron travelling through the device emits light not once (as in most other lasers), but many times, quantum cascade lasers are powerful: Dr Capasso's group has recently shown that they beat conventional semiconductor lasers by a factor of 20.

ECONOMIST: Lasers