Abstract

We report waveguides in Ni-doped Li2O-Ga2O3-SiO2(Ni:LGS) glass and glass-ceramic (GC) fabricated with a femtosecond (fs) laser with repetition rate of 1 kHz. When the glass is annealed to form a GC, the waveguides are erased. However, in the GC the waveguides are not erased by annealing. In Ni:LGS GC a 415 nm absorption band was created by fs laser waveguide writing due to the creation of Ni nanoparticles with an estimated diameter of a few nm. Raman and photoluminescence spectra of the bulk and waveguide structures were indistinguishable; however, fluorescence decay profiles indicated more long lifetime components in the waveguide compared to the bulk. © 2014 Elsevier B.V. All rights reserved.

Author-supplied keywords

• Femtosecond laser
• Glass-ceramic
• Waveguides

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• SCOPUS: 2-s2.0-84901241780
• SGR: 84901241780
• ISSN: 09253467
• PUI: 53131765
• DOI: 10.1016/j.optmat.2014.04.042
• PII: S0925346714002092

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