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

Tatiana Itina 1 Hongfeng Ma Roman Zakoldaev 2 Anton Rudenko 1 Maksim Sergeev Vadim Veiko
1 LHC - Laboratoire Hubert Curien [Saint Etienne]
2 ITMO - National Research University of Information Technologies, Mechanics and Optics [St. Petersburg]
Abstract : 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.
Document type :
Journal articles
Complete list of metadatas
https://hal-ujm.archives-ouvertes.fr/ujm-01845183
Contributor : Tatiana Itina <>
Submitted on : Friday, July 20, 2018 - 11:05:27 AM
Last modification on : Monday, June 17, 2019 - 7:58:04 PM
Long-term archiving on : Sunday, October 21, 2018 - 4:51:17 PM

File

oe-25-26-33261.pdf
Publisher files allowed on an open archive

Identifiers

Collections

UNIV-ST-ETIENNE | IOGS | PARISTECH | UNIV-PARIS-SACLAY

Citation

Tatiana Itina, Hongfeng Ma, Roman Zakoldaev, Anton Rudenko, Maksim Sergeev, et al.. Well-controlled femtosecond laser inscription of periodic void structures in porous glass for photonic applications. Optics Express, Optical Society of America, 2017, 25 (26), ⟨10.1364/OE.25.033261⟩. ⟨ujm-01845183⟩

Export

BibTeX TEI DC DCterms EndNote

Share

Metrics

Record views

79

Files downloads

85

Contact

support.ccsd.cnrs.fr
hal.support@ccsd.cnrs.fr
Logo CCSD