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Hierarchical Multi-Scale Coupled Periodical Photonic and Plasmonic Nanopatterns Inscribed by Femtosecond Laser Pulses in Lithium Niobate

The ultrafast interaction of tightly focused femtosecond laser pulses with bulk dielectric media in direct laser writing (inscription) regimes is known to proceed via complex multi-scale light, plasma and material modification nanopatterns, which are challenging for exploration owing to their mesosc...

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Autores principales: Kudryashov, Sergey, Rupasov, Alexey, Kosobokov, Mikhail, Akhmatkhanov, Andrey, Krasin, George, Danilov, Pavel, Lisjikh, Boris, Abramov, Alexander, Greshnyakov, Evgeny, Kuzmin, Evgeny, Kovalev, Michael, Shur, Vladimir
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9739945/
https://www.ncbi.nlm.nih.gov/pubmed/36500925
http://dx.doi.org/10.3390/nano12234303
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author Kudryashov, Sergey
Rupasov, Alexey
Kosobokov, Mikhail
Akhmatkhanov, Andrey
Krasin, George
Danilov, Pavel
Lisjikh, Boris
Abramov, Alexander
Greshnyakov, Evgeny
Kuzmin, Evgeny
Kovalev, Michael
Shur, Vladimir
author_facet Kudryashov, Sergey
Rupasov, Alexey
Kosobokov, Mikhail
Akhmatkhanov, Andrey
Krasin, George
Danilov, Pavel
Lisjikh, Boris
Abramov, Alexander
Greshnyakov, Evgeny
Kuzmin, Evgeny
Kovalev, Michael
Shur, Vladimir
author_sort Kudryashov, Sergey
collection PubMed
description The ultrafast interaction of tightly focused femtosecond laser pulses with bulk dielectric media in direct laser writing (inscription) regimes is known to proceed via complex multi-scale light, plasma and material modification nanopatterns, which are challenging for exploration owing to their mesoscopic, transient and buried character. In this study, we report on the first experimental demonstration, analysis and modeling of hierarchical multi-period coupled longitudinal and transverse nanogratings in bulk lithium niobate inscribed in the focal region by 1030 nm, 300 fs laser pulses in the recently proposed sub-filamentary laser inscription regime. The longitudinal Bragg-like topography nanogratings, possessing the laser-intensity-dependent periods ≈ 400 nm, consist of transverse birefringent nanogratings, which are perpendicular to the laser polarization and exhibit much smaller periods ≈ 160 nm. Our analysis and modeling support the photonic origin of the longitudinal nanogratings, appearing as prompt electromagnetic and corresponding ionization standing waves in the pre-focal region due to interference of the incident and plasma-reflected laser pulse parts. The transverse nanogratings could be assigned to the nanoscale material modification by interfacial plasmons, excited and interfered in the resulting longitudinal array of the plasma sheets in the bulk dielectric material. Our experimental findings provide strong support for our previously proposed mechanism of such hierarchical laser nanopatterning in bulk dielectrics, giving important insights into its crucial parameters and opening the way for directional harnessing of this technology.
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spelling pubmed-97399452022-12-11 Hierarchical Multi-Scale Coupled Periodical Photonic and Plasmonic Nanopatterns Inscribed by Femtosecond Laser Pulses in Lithium Niobate Kudryashov, Sergey Rupasov, Alexey Kosobokov, Mikhail Akhmatkhanov, Andrey Krasin, George Danilov, Pavel Lisjikh, Boris Abramov, Alexander Greshnyakov, Evgeny Kuzmin, Evgeny Kovalev, Michael Shur, Vladimir Nanomaterials (Basel) Article The ultrafast interaction of tightly focused femtosecond laser pulses with bulk dielectric media in direct laser writing (inscription) regimes is known to proceed via complex multi-scale light, plasma and material modification nanopatterns, which are challenging for exploration owing to their mesoscopic, transient and buried character. In this study, we report on the first experimental demonstration, analysis and modeling of hierarchical multi-period coupled longitudinal and transverse nanogratings in bulk lithium niobate inscribed in the focal region by 1030 nm, 300 fs laser pulses in the recently proposed sub-filamentary laser inscription regime. The longitudinal Bragg-like topography nanogratings, possessing the laser-intensity-dependent periods ≈ 400 nm, consist of transverse birefringent nanogratings, which are perpendicular to the laser polarization and exhibit much smaller periods ≈ 160 nm. Our analysis and modeling support the photonic origin of the longitudinal nanogratings, appearing as prompt electromagnetic and corresponding ionization standing waves in the pre-focal region due to interference of the incident and plasma-reflected laser pulse parts. The transverse nanogratings could be assigned to the nanoscale material modification by interfacial plasmons, excited and interfered in the resulting longitudinal array of the plasma sheets in the bulk dielectric material. Our experimental findings provide strong support for our previously proposed mechanism of such hierarchical laser nanopatterning in bulk dielectrics, giving important insights into its crucial parameters and opening the way for directional harnessing of this technology. MDPI 2022-12-04 /pmc/articles/PMC9739945/ /pubmed/36500925 http://dx.doi.org/10.3390/nano12234303 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kudryashov, Sergey
Rupasov, Alexey
Kosobokov, Mikhail
Akhmatkhanov, Andrey
Krasin, George
Danilov, Pavel
Lisjikh, Boris
Abramov, Alexander
Greshnyakov, Evgeny
Kuzmin, Evgeny
Kovalev, Michael
Shur, Vladimir
Hierarchical Multi-Scale Coupled Periodical Photonic and Plasmonic Nanopatterns Inscribed by Femtosecond Laser Pulses in Lithium Niobate
title Hierarchical Multi-Scale Coupled Periodical Photonic and Plasmonic Nanopatterns Inscribed by Femtosecond Laser Pulses in Lithium Niobate
title_full Hierarchical Multi-Scale Coupled Periodical Photonic and Plasmonic Nanopatterns Inscribed by Femtosecond Laser Pulses in Lithium Niobate
title_fullStr Hierarchical Multi-Scale Coupled Periodical Photonic and Plasmonic Nanopatterns Inscribed by Femtosecond Laser Pulses in Lithium Niobate
title_full_unstemmed Hierarchical Multi-Scale Coupled Periodical Photonic and Plasmonic Nanopatterns Inscribed by Femtosecond Laser Pulses in Lithium Niobate
title_short Hierarchical Multi-Scale Coupled Periodical Photonic and Plasmonic Nanopatterns Inscribed by Femtosecond Laser Pulses in Lithium Niobate
title_sort hierarchical multi-scale coupled periodical photonic and plasmonic nanopatterns inscribed by femtosecond laser pulses in lithium niobate
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9739945/
https://www.ncbi.nlm.nih.gov/pubmed/36500925
http://dx.doi.org/10.3390/nano12234303
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