dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/17195 |
|
dc.identifier.uri |
https://doi.org/10.15488/17067 |
|
dc.contributor.author |
Wanie, Vincent
|
|
dc.contributor.author |
Barbato, Pasquale
|
|
dc.contributor.author |
Hahne, Josina
|
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dc.contributor.author |
Ryabchuk, Sergey
|
|
dc.contributor.author |
Wahid, Ammar Bin
|
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dc.contributor.author |
Amorim, David
|
|
dc.contributor.author |
Månsson, Erik P.
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dc.contributor.author |
Trabattoni, Andrea
|
|
dc.contributor.author |
Osellame, Roberto
|
|
dc.contributor.author |
Martínez Vázquez, Rebeca
|
|
dc.contributor.author |
Calegari, Francesca
|
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dc.date.accessioned |
2024-04-16T05:58:52Z |
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dc.date.available |
2024-04-16T05:58:52Z |
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dc.date.issued |
2024 |
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dc.identifier.citation |
Wanie, V.; Barbato, P.; Hahne, J.; Ryabchuk, S.; Wahid, A.B. et al.: Ultraviolet supercontinuum generation using a differentially-pumped integrated glass chip. In: JPhys Photonics (Journal of Physics: Photonics) 6 (2024), Nr. 2, 025005. DOI: https://doi.org/10.1088/2515-7647/ad2bd3 |
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dc.description.abstract |
We investigate the generation of ultrabroadband femtosecond ultraviolet (UV) radiation via third-order harmonic generation in highly confined gas media. A dual-stage differential-pumping scheme integrated into a glass microfluidic chip provides an exceptional gas confinement up to several bar and allows the apparatus to be operated under high-vacuum environment. UV pulses are generated both in argon and neon with up to ∼0.8 μJ energy and 0.2% conversion efficiency for spectra that cover the UVB and UVC regions between 200 and 325 nm. Numerical simulations based on the unidirectional pulse propagation equation reveal that ionization plays a critical role for extending the spectral bandwidth of the generated third-harmonic pulse beyond the tripled 800 nm driving laser pulse bandwidth. By delivering UV supercontinua supporting Fourier transform limits below 2 fs, as well as comparable pulse energies with respect to capillary-based techniques that typically provide high spectral tunability but produce narrower bandwidths, our compact device makes a step forward towards the production and application of sub-fs UV pulses for the investigation of electron dynamics in neutral molecules. |
eng |
dc.language.iso |
eng |
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dc.publisher |
Bristol : IOP Publishing |
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dc.relation.ispartofseries |
JPhys Photonics (Journal of Physics: Photonics) 6 (2024), Nr. 2 |
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dc.rights |
CC BY 4.0 Unported |
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dc.rights.uri |
https://creativecommons.org/licenses/by/4.0 |
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dc.subject |
differential pumping |
eng |
dc.subject |
femtosecond laser micromachining |
eng |
dc.subject |
frequency conversion |
eng |
dc.subject |
third-harmonic generation |
eng |
dc.subject |
ultrafast optics |
eng |
dc.subject |
ultrafast UV spectroscopy |
eng |
dc.subject |
ultraviolet radiation |
eng |
dc.subject.ddc |
530 | Physik
|
|
dc.title |
Ultraviolet supercontinuum generation using a differentially-pumped integrated glass chip |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.essn |
2515-7647 |
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dc.relation.doi |
https://doi.org/10.1088/2515-7647/ad2bd3 |
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dc.bibliographicCitation.issue |
2 |
|
dc.bibliographicCitation.volume |
6 |
|
dc.bibliographicCitation.firstPage |
025005 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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