Laser damage in silicon: Energy absorption, relaxation, and transport
By A. Ramer, Omair Osmani, B. Rethfeld. 2014
150 citations recorded by the source corpus.
Silicon irradiated with an ultrashort 800 nm-laser pulse is studied theoretically using a two temperature description that considers the transient free carrier density during and after irradiation. A Drude model is implemented to account for the highly transient optical parameters. We analyze the importance of considering these density-dependent parameters as well as the choice of the Drude collision frequency. In addition, degeneracy and transport effects are investigated. The importance of each of these processes for resulting calculated damage thresholds is studied. We report damage thresholds calculations that are in very good agreement with experimental results over a wide range of pulse durations.
Subfields: Biomedical Engineering, Computational Mechanics, Ophthalmology
View Paper: https://www.semanticscholar.org/paper/66c70ce7bd28fe16f6cec6eba67878c01b60ce2c
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In Biomedical Engineering
In Computational Mechanics
Citations in the corpus
- Modelling ultrafast laser ablation (2017, methodology): “The attenuation of laser intensity by single- and two photon absorption as well as free carrier absorption is given by [18, 24, 34, 35]”