Subcycle Surface Electron Emission by Strong-Field THz Waveforms

Shaoxian Li,Ashutosh Sharma,Priyo S. Nugraha,Zsuzsanna Márton,Csaba Lombosi,Zoltán Ollmann,István Márton,Péter Dombi,János Hebling,József A. Fülöp

2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)（2023）

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摘要

The advent of intense THz sources opened a new era when the demonstration of the generation, acceleration and manipulation of free electrons by THz pulses is within reach [1]–[3]. THz-field-driven electron emission was predicted being confined to a single burst due to the single-cycle waveforms [4]. Here, we demonstrate the confinement of single-cycle THz-waveform-driven electron emission to one of the two half cycles and the control of the active half cycle by changing the field polarity.

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关键词

acceleration,active half cycle,field polarity,free electrons,intense THz sources,single-cycle THz-waveform-driven electron emission,strong-field THz waveforms,subcycle surface electron emission

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