Femtosecond laser induced thermophoretic writing of waveguides in silicate glass

Abstract Here in, the fs-laser induced thermophoretic writing of microstructures in ad-hoc compositionally designed silicate glasses and their application as infrared optical waveguides is reported. The glass modification mechanism mimics the elemental thermal diffusion occurring in basaltic liquids...

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Autores principales:	Manuel Macias-Montero, Francisco Muñoz, Belén Sotillo, Jesús del Hoyo, Rocío Ariza, Paloma Fernandez, Jan Siegel, Javier Solis
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8a01f9222c384fb582339e4ec4043a9d
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spelling	oai:doaj.org-article:8a01f9222c384fb582339e4ec4043a9d2021-12-02T15:51:16ZFemtosecond laser induced thermophoretic writing of waveguides in silicate glass10.1038/s41598-021-87765-z2045-2322https://doaj.org/article/8a01f9222c384fb582339e4ec4043a9d2021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87765-zhttps://doaj.org/toc/2045-2322Abstract Here in, the fs-laser induced thermophoretic writing of microstructures in ad-hoc compositionally designed silicate glasses and their application as infrared optical waveguides is reported. The glass modification mechanism mimics the elemental thermal diffusion occurring in basaltic liquids at the Earth’s mantle, but in a much shorter time scale (108 times faster) and over a well-defined micrometric volume. The precise addition of BaO, Na2O and K2O to the silicate glass enables the creation of positive refractive index contrast upon fs-laser irradiation. The influence of the focal volume and the induced temperature gradient is thoroughly analyzed, leading to a variety of structures with refractive index contrasts as high as 2.5 × 10–2. Two independent methods, namely near field measurements and electronic polarizability analysis, confirm the magnitude of the refractive index on the modified regions. Additionally, the functionality of the microstructures as waveguides is further optimized by lowering their propagation losses, enabling their implementation in a wide range of photonic devices.Manuel Macias-MonteroFrancisco MuñozBelén SotilloJesús del HoyoRocío ArizaPaloma FernandezJan SiegelJavier SolisNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Manuel Macias-Montero Francisco Muñoz Belén Sotillo Jesús del Hoyo Rocío Ariza Paloma Fernandez Jan Siegel Javier Solis Femtosecond laser induced thermophoretic writing of waveguides in silicate glass
description	Abstract Here in, the fs-laser induced thermophoretic writing of microstructures in ad-hoc compositionally designed silicate glasses and their application as infrared optical waveguides is reported. The glass modification mechanism mimics the elemental thermal diffusion occurring in basaltic liquids at the Earth’s mantle, but in a much shorter time scale (108 times faster) and over a well-defined micrometric volume. The precise addition of BaO, Na2O and K2O to the silicate glass enables the creation of positive refractive index contrast upon fs-laser irradiation. The influence of the focal volume and the induced temperature gradient is thoroughly analyzed, leading to a variety of structures with refractive index contrasts as high as 2.5 × 10–2. Two independent methods, namely near field measurements and electronic polarizability analysis, confirm the magnitude of the refractive index on the modified regions. Additionally, the functionality of the microstructures as waveguides is further optimized by lowering their propagation losses, enabling their implementation in a wide range of photonic devices.
format	article
author	Manuel Macias-Montero Francisco Muñoz Belén Sotillo Jesús del Hoyo Rocío Ariza Paloma Fernandez Jan Siegel Javier Solis
author_facet	Manuel Macias-Montero Francisco Muñoz Belén Sotillo Jesús del Hoyo Rocío Ariza Paloma Fernandez Jan Siegel Javier Solis
author_sort	Manuel Macias-Montero
title	Femtosecond laser induced thermophoretic writing of waveguides in silicate glass
title_short	Femtosecond laser induced thermophoretic writing of waveguides in silicate glass
title_full	Femtosecond laser induced thermophoretic writing of waveguides in silicate glass
title_fullStr	Femtosecond laser induced thermophoretic writing of waveguides in silicate glass
title_full_unstemmed	Femtosecond laser induced thermophoretic writing of waveguides in silicate glass
title_sort	femtosecond laser induced thermophoretic writing of waveguides in silicate glass
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8a01f9222c384fb582339e4ec4043a9d
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Femtosecond laser induced thermophoretic writing of waveguides in silicate glass

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