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arXiv · 2108.03053

Characterization of laser-induced ionization dynamics in solid dielectrics

Peter Jürgens·Benjamin Liewehr·Björn Kruse·Christian Peltz·Tobias Witting·Anton Husakou·Arnaud Rouzee·Mikhail Ivanov·Thomas Fennel·Marc. J. J. Vrakking·Alexandre Mermillod-Blondin
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Abstract

The formation of an electron-hole plasma during the interaction of intense femtosecond laser pulses with transparent solids lies at the heart of femtosecond laser processing. Advanced micro- and nanomachining applications require improved control over the excitation characteristics. Here, we relate the emission of low-order harmonics to the strong laser-field-induced plasma formation. Together with a measurement of the total plasma density we identify the contribution of two competing ionization mechanisms - strong-field and electron-impact ionization.

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Peter Jürgens, Benjamin Liewehr, Björn Kruse, Christian Peltz, Tobias Witting, Anton Husakou, Arnaud Rouzee, Mikhail Ivanov, Thomas Fennel, Marc. J. J. Vrakking, Alexandre Mermillod-Blondin. 2021-08-06. Characterization of laser-induced ionization dynamics in solid dielectrics. https://arxiv.org/abs/2108.03053

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