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

Hughes, MA; Homewood, KP; Curry, RJ; Ohishi, Y; Suzuki, T

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.

Citation

femtosecond laser. Optical Materials, 36(6), 1604-1608. https://doi.org/10.1016/j.optmat.2014.04.042

• Journal Article Type: Article
• Acceptance Date: Apr 23, 2014
• Publication Date: May 13, 2014
• Deposit Date: Nov 11, 2015
• Journal: Optical Materials
• Print ISSN: 0925-3467
• Electronic ISSN: 1873-1252
• Publisher: Elsevier
• Volume: 36
• Issue: 6
• Pages: 1604-1608
• DOI: https://doi.org/10.1016/j.optmat.2014.04.042
• Publisher URL: http://dx.doi.org/10.1016/j.optmat.2014.04.042
• Related Public URLs: http://www.sciencedirect.com/science/journal/09253467
• Additional Information: Funders : Engineering and Physical Sciences Research Council (EPSRC)