Waveguides in Ni-doped glass and glass–ceramic written with a 1 kHz femtosecond laser
Hughes, MA, Homewood, KP, Curry, RJ, Ohishi, Y and Suzuki, T 2014, 'Waveguides in Ni-doped glass and glass–ceramic written with a 1 kHz femtosecond laser' , Optical Materials, 36 (6) , pp. 1604-1608.
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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.
|Schools:||Schools > School of Computing, Science and Engineering|
|Journal or Publication Title:||Optical Materials|
|Funders:||Engineering and Physical Sciences Research Council (EPSRC)|
|Depositing User:||Dr Mark Hughes|
|Date Deposited:||11 Nov 2015 10:29|
|Last Modified:||05 Apr 2016 19:37|
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