We report waveguides in Ni-doped Li2O-Ga2O 3-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.
CITATION STYLE
Hughes, M. A., Homewood, K. P., Curry, R. J., Ohishi, Y., & Suzuki, T. (2014). Waveguides in Ni-doped glass and glass-ceramic written with a 1 kHz femtosecond laser. Optical Materials, 36(9), 1604–1608. https://doi.org/10.1016/j.optmat.2014.04.042
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