Well-controlled femtosecond laser inscription of periodic void structures in porous glass for photonic applications - Université Jean-Monnet-Saint-Étienne Accéder directement au contenu
Article Dans Une Revue Optics Express Année : 2017

Well-controlled femtosecond laser inscription of periodic void structures in porous glass for photonic applications

Hongfeng Ma
Anton Rudenko
Maksim M Sergeev
  • Fonction : Auteur
Vadim P Veiko
  • Fonction : Auteur
Tatiana Itina

Résumé

We report control possibilities over ultrafast laser-induced periodic void lines in porous glass. Instead of high intensity regime leading to filaments, multi-pulse irradiation with high repetition rate (500 kHz) and various writing speed is used here in a transverse geometry. The formation of a perfectly controlled periodic void structure is shown to rely on such parameters as laser energy per pulse and scanning speed. In particular, both the threshold energy required for this effect and the period of the fabricated void arrays are shown to rise linearly with the number of the applied laser pulses per spot, or with a decreasing writing speed. To explain these results, a thermodynamic analysis is performed. The obtained dependencies are correlated with linear energy losses, whereas the periodicity of the observed structures is attributed to a static energy source formation at the void location affecting both material density and laser energy absorption.
Fichier principal
Vignette du fichier
oe-25-26-33261.pdf (2.95 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

ujm-01671701 , version 1 (22-12-2017)

Identifiants

Citer

Hongfeng Ma, Roman Zakoldaev, Anton Rudenko, Maksim M Sergeev, Vadim P Veiko, et al.. Well-controlled femtosecond laser inscription of periodic void structures in porous glass for photonic applications. Optics Express, 2017, 25 (26), ⟨10.1364/OE.25.033261⟩. ⟨ujm-01671701⟩
48 Consultations
201 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More