Waveguides in Ni-doped glass and glass-ceramic written with a 1 kHz femtosecond laser

  • Hughes M
  • Homewood K
  • Curry R
 et al. 
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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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  • M. A. Hughes

  • K. P. Homewood

  • R. J. Curry

  • Y. Ohishi

  • T. Suzuki

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