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Characterization of Laser-Induced Ionization Dynamics in Solid Dielectrics
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DOI：10.1021/acsphotonics.1c01417.png)
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Abstract
En 中文
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.
Keywords:
nonlinear optics
high harmonic generation
strong-field ionization
plasma formation
fused silica
ultrafast photonics
Journal
IF:
6.7
Papers:
5.6K
Citations:
2.5W