Local crystallization of barium titanate silicate glass under the action of femtosecond laser beam was studied. The effect of the scan rate of the laser beam and the energy of the laser pulses on the morphology of the channels containing crystals of fresnoite Ba2TiSi2O8 was determined. Polarization Raman scattering spectroscopy was used to determine the predominant orientation of fresnoite crystals with formed channels. The results open up prospects for developing and fabricating waveguide crystal structures with low optical losses for photonics and integrated optics.
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The work associated with the synthesis and laser modification of the structure of glasses was supported by RFFI (grants No. 16-33-60081, 16-33-01050, and 16-03-00541). The electron microscopy studies of the structure of modified regions of glass were supported by the Ministry of Education and Science of the Russian Federation (Grant No. 14.Z50.31.0009).
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Translated from Steklo i Keramika, No. 12, pp. 3 – 7, December, 2017.
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Lipat’ev, A.S., Moiseev, I.A., Lotarev, S.V. et al. Femtosecond Laser Assisted Local Crystallization of Barium-Titanate-Silicate Glass. Glass Ceram 74, 423–427 (2018). https://doi.org/10.1007/s10717-018-0008-7
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DOI: https://doi.org/10.1007/s10717-018-0008-7