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First results on laser-induced field emission from a CNT-based nanotip

机译：基于CNT的纳米尖端的激光诱导场发射的初步结果

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We present the first demonstration of ultrafast laser-induced field emission and measurement of the energy distribution of electrons from a nanotip based on a carbon nanotube (CNT). Our experimental setup extends the studies performed on conventional tungsten or gold tips by using this new innovative tip. The carbon tip consists of concentric carbon layers in the shape of a cone, and has been previously studied as a very good candidate for cold field emission. The first laser-induced field emission from a CNT-based nanotip has been observed and we measured the energy spectrum as well as the polarization dependance of the emission. We also characterize the damage threshold of the tip, when illuminated by a high repetition rate femtosecond laser. These first results are encouraging further studies of electron emission from CNT-based carbon nanotips. (C) 2014 Elsevier B.V. All rights reserved.
机译：我们展示了超快激光诱导的场发射的首次演示，以及基于碳纳米管（CNT）的纳米尖端对电子能量分布的测量。我们的实验装置通过使用这种创新的尖端扩大了对常规钨或金尖端进行的研究。碳尖端由圆锥形的同心碳层组成，并且先前已被研究为冷场发射的非常好的候选者。已经观察到了基于CNT的纳米尖端的首次激光诱导的场发射，我们测量了发射的能谱以及偏振相关性。当高重复率飞秒激光照射时，我们还可以表征尖端的损伤阈值。这些最初的结果鼓舞了对基于CNT的碳纳米尖端的电子发射的进一步研究。 （C）2014 Elsevier B.V.保留所有权利。

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