Micro-to-Nanoscale Characterization of Femtosecond Laser Photo-Inscribed Microvoids-Reference-Cited by-同舟云学术

Micro-to-Nanoscale Characterization of Femtosecond Laser Photo-Inscribed Microvoids

Published:2024-07-20 Issue:14 Volume:14 Page:1228
ISSN:2079-4991
Container-title:Nanomaterials
language:en
Short-container-title:Nanomaterials

Author:

Sosa Matilde¹²,Cavillon Maxime²^ORCID,Blanchet Thomas¹^ORCID,Nemeth Gergely³,Borondics Ferenc³^ORCID,Laffont Guillaume¹,Lancry Matthieu²^ORCID

Affiliation:

1. Université Paris-Saclay, CEA, List, 91120 Palaiseau, France

2. Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO/SP2M/MAP), Université Paris-Saclay, CNRS, 91405 Orsay, France

3. SMIS Beamline, SOLEIL Synchrotron, L’Orme des Merisiers, 91190 Saint Aubin, France

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.

Funder

Agence Nationale de la Recherche

Publisher

MDPI AG

Link

https://www.mdpi.com/2079-4991/14/14/1228/pdf

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