Abstract

The use of titanium-sapphire-laser radiation with a low pulse repetition rate made it possible to operate a metal tip (without its destruction) as an electron emitter at an increased intensity of laser radiation on the tip. As a result, an emission of electrons with a charge in the range of tens of picocoulombs per laser pulse was obtained from a metal tip with a characteristic radius of a curvature of ~1 μm.

中文翻译：

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在飞秒 Ti:Sapphire 激光辐照下从金属尖端产生皮库仑级电子束

摘要

使用具有低脉冲重复率的钛蓝宝石激光辐射使得可以在尖端上的激光辐射强度增加的情况下将金属尖端（不会破坏它）作为电子发射器进行操作。结果，从具有~1μm的特征曲率半径的金属尖端获得了每个激光脉冲具有数十皮库仑范围内的电荷的电子发射。