Laser-induced stress by multi-beam femtosecond pulses in fused silica.
| Title: | Laser-induced stress by multi-beam femtosecond pulses in fused silica. |
|---|---|
| Authors: | Gaudfrin, Kévin1,2,3 (AUTHOR) kevin.gaudfrin@cea.fr, Lopez, John1 (AUTHOR), Gemini, Laura2 (AUTHOR), Hönninger, Clemens4 (AUTHOR), Duchateau, Guillaume3 (AUTHOR) |
| Source: | Journal of Applied Physics. 5/28/2024, Vol. 135 Issue 20, p1-18. 18p. |
| Subject Terms: | *FUSED silica, *FEMTOSECOND pulses, *LASER beams, *LASER pulses, *PROCESS capability, *LASER deposition |
| Abstract: | Ultrafast laser technology presents the unique capacity to process glass materials with an outstanding processing quality; however, combining high quality and high throughput is still a crucial issue because glass is brittle and highly heat sensitive. One strategy to overcome this limitation is to split in space the main laser beam into multiple beams for process parallelization. In the present paper, the simultaneous interaction of several femtosecond laser beams at the surface of fused silica targets is addressed experimentally and theoretically. This work is devoted to highlight the beams cooperation for inducing stress in the material. The experiment consists in irradiating the target with multiple laser pulses with a wavelength of 1030 nm and a duration of 500 fs. The induced stress is observed through post-mortem cross-polarized microscopy. A multiscale and multiphysics model describing laser energy deposition into the material and its mechanical response is developed. The influence of various laser parameters is studied: number and position of laser beams, repetition rate, and fluence. Both experimental and modeling results, which are in a good agreement, show significant cooperative effects for stress formation with large enough laser energy deposition, possibly leading to detrimental cracks. [ABSTRACT FROM AUTHOR] |
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| Items | – Name: Title Label: Title Group: Ti Data: Laser-induced stress by multi-beam femtosecond pulses in fused silica. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Gaudfrin%2C+Kévin%22">Gaudfrin, Kévin</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> kevin.gaudfrin@cea.fr</i><br /><searchLink fieldCode="AR" term="%22Lopez%2C+John%22">Lopez, John</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gemini%2C+Laura%22">Gemini, Laura</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hönninger%2C+Clemens%22">Hönninger, Clemens</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Duchateau%2C+Guillaume%22">Duchateau, Guillaume</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Applied+Physics%22">Journal of Applied Physics</searchLink>. 5/28/2024, Vol. 135 Issue 20, p1-18. 18p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22FUSED+silica%22">FUSED silica</searchLink><br />*<searchLink fieldCode="DE" term="%22FEMTOSECOND+pulses%22">FEMTOSECOND pulses</searchLink><br />*<searchLink fieldCode="DE" term="%22LASER+beams%22">LASER beams</searchLink><br />*<searchLink fieldCode="DE" term="%22LASER+pulses%22">LASER pulses</searchLink><br />*<searchLink fieldCode="DE" term="%22PROCESS+capability%22">PROCESS capability</searchLink><br />*<searchLink fieldCode="DE" term="%22LASER+deposition%22">LASER deposition</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Ultrafast laser technology presents the unique capacity to process glass materials with an outstanding processing quality; however, combining high quality and high throughput is still a crucial issue because glass is brittle and highly heat sensitive. One strategy to overcome this limitation is to split in space the main laser beam into multiple beams for process parallelization. In the present paper, the simultaneous interaction of several femtosecond laser beams at the surface of fused silica targets is addressed experimentally and theoretically. This work is devoted to highlight the beams cooperation for inducing stress in the material. The experiment consists in irradiating the target with multiple laser pulses with a wavelength of 1030 nm and a duration of 500 fs. The induced stress is observed through post-mortem cross-polarized microscopy. A multiscale and multiphysics model describing laser energy deposition into the material and its mechanical response is developed. The influence of various laser parameters is studied: number and position of laser beams, repetition rate, and fluence. Both experimental and modeling results, which are in a good agreement, show significant cooperative effects for stress formation with large enough laser energy deposition, possibly leading to detrimental cracks. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Applied Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1063/5.0202869 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 18 StartPage: 1 Subjects: – SubjectFull: FUSED silica Type: general – SubjectFull: FEMTOSECOND pulses Type: general – SubjectFull: LASER beams Type: general – SubjectFull: LASER pulses Type: general – SubjectFull: PROCESS capability Type: general – SubjectFull: LASER deposition Type: general Titles: – TitleFull: Laser-induced stress by multi-beam femtosecond pulses in fused silica. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Gaudfrin, Kévin – PersonEntity: Name: NameFull: Lopez, John – PersonEntity: Name: NameFull: Gemini, Laura – PersonEntity: Name: NameFull: Hönninger, Clemens – PersonEntity: Name: NameFull: Duchateau, Guillaume IsPartOfRelationships: – BibEntity: Dates: – D: 28 M: 05 Text: 5/28/2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 00218979 Numbering: – Type: volume Value: 135 – Type: issue Value: 20 Titles: – TitleFull: Journal of Applied Physics Type: main |
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