Near-Field Terahertz Emission Spectroscopy of Non-Linearities using Free Electrons

Kaizad Rustomji,Michael Yannai,Yuval Adiv,Raphael Dahan, Tal Fishman,Yonatan Sivan,Igal Brener,Oleg Mitrofanov,Ido Kaminer

2023 Conference on Lasers and Electro-Optics (CLEO)（2023）

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摘要

The interaction of free-electron pulses with THz near-fields imprints a rich structure on the electron spectrum. We exploit this interaction in an ultrafast electron microscope distinguishing THz-generating non-linear mechanisms of optical rectification and photo-Dember effect.

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关键词

electron spectrum,free electrons,free-electron pulses,near-field terahertz emission spectroscopy,nonlinear mechanisms,nonlinearities,rich structure,THz near-fields,ultrafast electron microscope distinguishing

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