Femtosecond laser induced step-like structures inside transparent hydrogel due to laser induced threshold reduction

Show simple item record

dc.identifier.uri http://dx.doi.org/10.15488/10444
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/10519
dc.contributor.author Saerchen, Emanuel
dc.contributor.author Liedtke-Gruener, Susann
dc.contributor.author Kopp, Maximilian
dc.contributor.author Heisterkamp, Alexander
dc.contributor.author Lubatschowski, Holger
dc.contributor.author Ripken, Tammo
dc.date.accessioned 2021-02-24T10:00:40Z
dc.date.available 2021-02-24T10:00:40Z
dc.date.issued 2019
dc.identifier.citation Saerchen, E.; Liedtke-Gruener, S.; Kopp, M. et al.: Femtosecond laser induced step-like structures inside transparent hydrogel due to laser induced threshold reduction. In: PLoS ONE 14 (2019), Nr. 9, e0222293. DOI: https://doi.org/10.1371/journal.pone.0222293
dc.description.abstract In the area of laser material processing, versatile applications for cutting glasses and transparent polymers exist. However, parasitic effects such as the creation of step-like structures appear when laser cutting inside a transparent material. To date, these structures were only described empirically. This work establishes the physical and chemical mechanisms behind the observed effects and describes the influence of process and material parameters onto the creation of step-like structures in hydrogel, Dihydroxyethylmethacrylat (HEMA). By focusing laser pulses in HEMA, reduced pulse separation distance below 50 nm and rise in pulse energy enhances the creation of unintended step-like structures. Spatial resolved Raman-spectroscopy was used to measure the laser induced chemical modification, which results into a reduced breakdown threshold. The reduction in threshold influences the position of optical breakdown for the succeeding laser pulses and consequently leads to the step-like structures. Additionally, the experimental findings were supplemented with numerical simulations of the influence of reduced damage threshold onto the position of optical breakdown. In summary, chemical material change was defined as cause of the step-like structures. Furthermore, the parameters to avoid these structures were identified. eng
dc.language.iso eng
dc.publisher San Francisco, CA : Public Library of Science (PLoS)
dc.relation.ispartofseries PLoS ONE 14 (2019), Nr. 9
dc.rights CC BY 4.0 Unported
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject 2 hydroxyethyl methacrylate eng
dc.subject dihydroxyethylmethacrylate eng
dc.subject unclassified drug eng
dc.subject Article eng
dc.subject chemical modification eng
dc.subject chemical structure eng
dc.subject hydrogel eng
dc.subject mathematical analysis eng
dc.subject Raman spectrometry eng
dc.subject simulation eng
dc.subject spatial analysis eng
dc.subject.ddc 500 | Naturwissenschaften ger
dc.subject.ddc 610 | Medizin, Gesundheit ger
dc.title Femtosecond laser induced step-like structures inside transparent hydrogel due to laser induced threshold reduction
dc.type Article
dc.type Text
dc.relation.issn 1932-6203
dc.relation.doi https://doi.org/10.1371/journal.pone.0222293
dc.bibliographicCitation.issue 9
dc.bibliographicCitation.volume 14
dc.bibliographicCitation.firstPage e0222293
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

Files in this item

This item appears in the following Collection(s):

Show simple item record


Search the repository


My Account

Usage Statistics