Cargando…
Laser-driven proton acceleration from ultrathin foils with nanoholes
Structured solid targets are widely investigated to increase the energy absorption of high-power laser pulses so as to achieve efficient ion acceleration. Here we report the first experimental study of the maximum energy of proton beams accelerated from sub-micrometric foils perforated with holes of...
Autores principales: | , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7930106/ https://www.ncbi.nlm.nih.gov/pubmed/33658533 http://dx.doi.org/10.1038/s41598-021-84264-z |
_version_ | 1783660045951565824 |
---|---|
author | Cantono, Giada Permogorov, Alexander Ferri, Julien Smetanina, Evgeniya Dmitriev, Alexandre Persson, Anders Fülöp, Tünde Wahlström, Claes-Göran |
author_facet | Cantono, Giada Permogorov, Alexander Ferri, Julien Smetanina, Evgeniya Dmitriev, Alexandre Persson, Anders Fülöp, Tünde Wahlström, Claes-Göran |
author_sort | Cantono, Giada |
collection | PubMed |
description | Structured solid targets are widely investigated to increase the energy absorption of high-power laser pulses so as to achieve efficient ion acceleration. Here we report the first experimental study of the maximum energy of proton beams accelerated from sub-micrometric foils perforated with holes of nanometric size. By showing the lack of energy enhancement in comparison to standard flat foils, our results suggest that the high contrast routinely achieved with a double plasma mirror does not prevent damaging of the nanostructures prior to the main interaction. Particle-in-cell simulations support that even a short scale length plasma, formed in the last hundreds of femtoseconds before the peak of an ultrashort laser pulse, fills the holes and hinders enhanced electron heating. Our findings reinforce the need for improved laser contrast, as well as for accurate control and diagnostics of on-target plasma formation. |
format | Online Article Text |
id | pubmed-7930106 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-79301062021-03-05 Laser-driven proton acceleration from ultrathin foils with nanoholes Cantono, Giada Permogorov, Alexander Ferri, Julien Smetanina, Evgeniya Dmitriev, Alexandre Persson, Anders Fülöp, Tünde Wahlström, Claes-Göran Sci Rep Article Structured solid targets are widely investigated to increase the energy absorption of high-power laser pulses so as to achieve efficient ion acceleration. Here we report the first experimental study of the maximum energy of proton beams accelerated from sub-micrometric foils perforated with holes of nanometric size. By showing the lack of energy enhancement in comparison to standard flat foils, our results suggest that the high contrast routinely achieved with a double plasma mirror does not prevent damaging of the nanostructures prior to the main interaction. Particle-in-cell simulations support that even a short scale length plasma, formed in the last hundreds of femtoseconds before the peak of an ultrashort laser pulse, fills the holes and hinders enhanced electron heating. Our findings reinforce the need for improved laser contrast, as well as for accurate control and diagnostics of on-target plasma formation. Nature Publishing Group UK 2021-03-03 /pmc/articles/PMC7930106/ /pubmed/33658533 http://dx.doi.org/10.1038/s41598-021-84264-z Text en © The Author(s) 2021 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Cantono, Giada Permogorov, Alexander Ferri, Julien Smetanina, Evgeniya Dmitriev, Alexandre Persson, Anders Fülöp, Tünde Wahlström, Claes-Göran Laser-driven proton acceleration from ultrathin foils with nanoholes |
title | Laser-driven proton acceleration from ultrathin foils with nanoholes |
title_full | Laser-driven proton acceleration from ultrathin foils with nanoholes |
title_fullStr | Laser-driven proton acceleration from ultrathin foils with nanoholes |
title_full_unstemmed | Laser-driven proton acceleration from ultrathin foils with nanoholes |
title_short | Laser-driven proton acceleration from ultrathin foils with nanoholes |
title_sort | laser-driven proton acceleration from ultrathin foils with nanoholes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7930106/ https://www.ncbi.nlm.nih.gov/pubmed/33658533 http://dx.doi.org/10.1038/s41598-021-84264-z |
work_keys_str_mv | AT cantonogiada laserdrivenprotonaccelerationfromultrathinfoilswithnanoholes AT permogorovalexander laserdrivenprotonaccelerationfromultrathinfoilswithnanoholes AT ferrijulien laserdrivenprotonaccelerationfromultrathinfoilswithnanoholes AT smetaninaevgeniya laserdrivenprotonaccelerationfromultrathinfoilswithnanoholes AT dmitrievalexandre laserdrivenprotonaccelerationfromultrathinfoilswithnanoholes AT perssonanders laserdrivenprotonaccelerationfromultrathinfoilswithnanoholes AT fuloptunde laserdrivenprotonaccelerationfromultrathinfoilswithnanoholes AT wahlstromclaesgoran laserdrivenprotonaccelerationfromultrathinfoilswithnanoholes |