Lolley, James, Wilson, Sarah Arabella orcid.org/0000-0001-5914-5085 and Tallents, Gregory John orcid.org/0000-0002-1409-105X (2019) Modelling extreme ultraviolet ablation interactions. In: Proceedings Volume 11035, Optics Damage and Materials Processing by EUV/X-ray Radiation VII; 110350R (2019). SPIE , R1- R8.
Abstract
Compact extreme ultraviolet (EUV) laser sources can be used for laboratory-scale ablation experiments at intensities of 1 x 10^11 Wcm^-2 and higher. The depths of ablation achieved using focused laser output at 46.9 nm to irradiate solid targets of aluminium, gold and copper have been modeled. Two simple models are considered; an adaption of an ultra-short pulse model, and an ablation velocity model. We show that the attenuation length of the material plays an important role in the physics of the ablation. A more detailed one-dimensional model including absorption by inverse bremsstrahlung absorption and photo-ionization, corrected to include electron degeneracy effects, is used to evaluate the opacity of the ablation plasma and subsequent ablation depths.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 26 Jul 2019 08:50 |
Last Modified: | 21 Jan 2025 18:24 |
Published Version: | https://doi.org/10.1117/12.2523137 |
Status: | Published |
Publisher: | SPIE |
Identification Number: | 10.1117/12.2523137 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:149056 |