Modeling validity of femtosecond laser breakdown in wide bandgap dielectrics
Source abstract
Abstract
Abstract In order to accurately calculate the femtosecond laser breakdown threshold of wide band-gap dielectrics using the photoionization and avalanche ionization theories, the applied range of these classical methods is demonstrated quantitatively by the comparison of the calculated results with the available experimental data. It is found that these standard theories to estimate laser ablation threshold are valid when the laser pulse duration is less than about 600 fs and the laser wavelength is more than around 400 nm. Besides, we demonstrate that the multi-photon ionization of wide band-gap dielectrics is the dominant breakdown mechanism when the laser wavelength is at the region of 0.4 μm λ
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Laser-induced spectroscopy and plasma · Laser Material Processing Techniques · Ocular and Laser Science Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (47)
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