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Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite

An ultrashort-pulse laser inscription of embedded birefringent microelements was performed inside bulk fluorite in pre-filamentation (geometrical focusing) and filamentation regimes as a function of laser wavelength, pulsewidth and energy. The resulting elements composed of anisotropic nanolattices...

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Autores principales: Kudryashov, Sergey, Rupasov, Alexey, Smayev, Mikhail, Danilov, Pavel, Kuzmin, Evgeny, Mushkarina, Irina, Gorevoy, Alexey, Bogatskaya, Anna, Zolot’ko, Alexander
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10058163/
https://www.ncbi.nlm.nih.gov/pubmed/36986027
http://dx.doi.org/10.3390/nano13061133
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author Kudryashov, Sergey
Rupasov, Alexey
Smayev, Mikhail
Danilov, Pavel
Kuzmin, Evgeny
Mushkarina, Irina
Gorevoy, Alexey
Bogatskaya, Anna
Zolot’ko, Alexander
author_facet Kudryashov, Sergey
Rupasov, Alexey
Smayev, Mikhail
Danilov, Pavel
Kuzmin, Evgeny
Mushkarina, Irina
Gorevoy, Alexey
Bogatskaya, Anna
Zolot’ko, Alexander
author_sort Kudryashov, Sergey
collection PubMed
description An ultrashort-pulse laser inscription of embedded birefringent microelements was performed inside bulk fluorite in pre-filamentation (geometrical focusing) and filamentation regimes as a function of laser wavelength, pulsewidth and energy. The resulting elements composed of anisotropic nanolattices were characterized by retardance (Ret) and thickness (T) quantities, using polarimetric and 3D-scanning confocal photoluminescence microscopy, respectively. Both parameters exhibit a monotonous increase versus pulse energy, going over a maximum at 1-ps pulsewidth at 515 nm, but decrease versus laser pulsewidth at 1030 nm. The resulting refractive-index difference (RID) Δn = Ret/T ~ 1 × 10(−3) remains almost constant versus pulse energy and slightly decreases at a higher pulsewidth, generally being higher at 515 nm. The birefringent microelements were visualized using scanning electron microscopy and chemically characterized using energy-dispersion X-ray spectroscopy, indicating the increase of calcium and the contrary decrease of fluorine inside them due to the non-ablative inscription character. Dynamic far-field optical diffraction of the inscribing ultrashort laser pulses also demonstrated the accumulative inscription character, depending on the pulse energy and the laser exposure. Our findings revealed the underlying optical and material inscription processes and demonstrated the robust longitudinal homogeneity of the inscribed birefringent microstructures and the facile scalability of their thickness-dependent retardance.
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spelling pubmed-100581632023-03-30 Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite Kudryashov, Sergey Rupasov, Alexey Smayev, Mikhail Danilov, Pavel Kuzmin, Evgeny Mushkarina, Irina Gorevoy, Alexey Bogatskaya, Anna Zolot’ko, Alexander Nanomaterials (Basel) Article An ultrashort-pulse laser inscription of embedded birefringent microelements was performed inside bulk fluorite in pre-filamentation (geometrical focusing) and filamentation regimes as a function of laser wavelength, pulsewidth and energy. The resulting elements composed of anisotropic nanolattices were characterized by retardance (Ret) and thickness (T) quantities, using polarimetric and 3D-scanning confocal photoluminescence microscopy, respectively. Both parameters exhibit a monotonous increase versus pulse energy, going over a maximum at 1-ps pulsewidth at 515 nm, but decrease versus laser pulsewidth at 1030 nm. The resulting refractive-index difference (RID) Δn = Ret/T ~ 1 × 10(−3) remains almost constant versus pulse energy and slightly decreases at a higher pulsewidth, generally being higher at 515 nm. The birefringent microelements were visualized using scanning electron microscopy and chemically characterized using energy-dispersion X-ray spectroscopy, indicating the increase of calcium and the contrary decrease of fluorine inside them due to the non-ablative inscription character. Dynamic far-field optical diffraction of the inscribing ultrashort laser pulses also demonstrated the accumulative inscription character, depending on the pulse energy and the laser exposure. Our findings revealed the underlying optical and material inscription processes and demonstrated the robust longitudinal homogeneity of the inscribed birefringent microstructures and the facile scalability of their thickness-dependent retardance. MDPI 2023-03-22 /pmc/articles/PMC10058163/ /pubmed/36986027 http://dx.doi.org/10.3390/nano13061133 Text en © 2023 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
Smayev, Mikhail
Danilov, Pavel
Kuzmin, Evgeny
Mushkarina, Irina
Gorevoy, Alexey
Bogatskaya, Anna
Zolot’ko, Alexander
Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite
title Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite
title_full Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite
title_fullStr Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite
title_full_unstemmed Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite
title_short Multi-Parametric Birefringence Control in Ultrashort-Pulse Laser-Inscribed Nanolattices in Fluorite
title_sort multi-parametric birefringence control in ultrashort-pulse laser-inscribed nanolattices in fluorite
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10058163/
https://www.ncbi.nlm.nih.gov/pubmed/36986027
http://dx.doi.org/10.3390/nano13061133
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