Micro-to-Nanoscale Characterization of Femtosecond Laser Photo-Inscribed Microvoids.
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| Title: | Micro-to-Nanoscale Characterization of Femtosecond Laser Photo-Inscribed Microvoids. |
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| Authors: | Sosa, Matilde1,2 (AUTHOR) matilde.sosamarti@cea.fr, Cavillon, Maxime2 (AUTHOR), Blanchet, Thomas1 (AUTHOR) thomas.blanchet@cea.fr, Nemeth, Gergely3 (AUTHOR) gergely.nemeth@synchrotron-soleil.fr, Borondics, Ferenc3 (AUTHOR) ferenc.borondics@synchrotron-soleil.fr, Laffont, Guillaume1 (AUTHOR) guillaume.laffont@cea.fr, Lancry, Matthieu2 (AUTHOR) matthieu.lancry@universite-paris-saclay.fr |
| Source: | Nanomaterials (2079-4991). Jul2024, Vol. 14 Issue 14, p1228. 10p. |
| Subjects: | Fiber Bragg gratings, Optical fibers, Stereology, Fiber lasers, Electron microscopy |
| Abstract: | Fiber Bragg gratings are key components for optical fiber sensing applications in harsh environments. This paper investigates the structural and chemical characteristics of femtosecond laser photo-inscribed microvoids. These voids are at the base of type III fs-gratings consisting of a periodic array of microvoids inscribed at the core of an optical fiber. Using high-resolution techniques such as quantitative phase microscopy, electron transmission microscopy, and scattering-type scanning near-field IR optical microscopy, we examined the structure of the microvoids and the densified shells around them. We also investigated the high-temperature behavior of the voids, revealing their evolution in size and shape under step isochronal annealing conditions up to 1250 °C. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | Fiber Bragg gratings are key components for optical fiber sensing applications in harsh environments. This paper investigates the structural and chemical characteristics of femtosecond laser photo-inscribed microvoids. These voids are at the base of type III fs-gratings consisting of a periodic array of microvoids inscribed at the core of an optical fiber. Using high-resolution techniques such as quantitative phase microscopy, electron transmission microscopy, and scattering-type scanning near-field IR optical microscopy, we examined the structure of the microvoids and the densified shells around them. We also investigated the high-temperature behavior of the voids, revealing their evolution in size and shape under step isochronal annealing conditions up to 1250 °C. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 20794991 |
| DOI: | 10.3390/nano14141228 |
