Femtosecond laser written nanostructures in Ge-doped glasses

We report on nanostructures induced by femtosecond laser pulses in the bulk of Germanium-doped silica glasses. For studying structural properties of the nanostructure constituents small-angle x-ray scattering and SEM served to map pore size, filling factor and periodicity. Our results show that with...

Full description

Saved in:
Bibliographic Details
Published inOptics letters Vol. 41; no. 6; p. 1161
Main Authors Zimmermann, Felix, Lancry, Matthieu, Plech, Anton, Richter, Sören, Babu, B Hari, Poumellec, Bertrand, Tünnermann, Andreas, Nolte, Stefan
Format Journal Article
LanguageEnglish
Published United States 15.03.2016
Online AccessGet more information

Cover

More Information
Summary:We report on nanostructures induced by femtosecond laser pulses in the bulk of Germanium-doped silica glasses. For studying structural properties of the nanostructure constituents small-angle x-ray scattering and SEM served to map pore size, filling factor and periodicity. Our results show that with increasing the Ge doping concentration, the aspect ratio (transverse to inscribing laser) of nanometric pores rises while they arrange in a smaller period in contrast to nanogratings in pristine fused silica. Consequently, higher optical retardance can be obtained demonstrating the pronounced glass decomposition due to the changing network structure.
ISSN:1539-4794
DOI:10.1364/ol.41.001161