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We report on the fabrication of planar waveguide structures in calcium barium niobate crystals via C ion implantation at room temperature. The SRIM code was applied to calculate damage profiles of the C ions implanted into Ca0.32Ba0.68Nb2O6 crystals. The low-damage profiles in the near-surface of the implanted regions were verified by Rutherford backscattering/channeling spectrometry. The waveguide...
A planar optical waveguide in MgAl2O4 crystal sample was fabricated using 6.0 MeV oxygen ion implantation at a fluence of 1.5 × 1015 ions/cm2 at room temperature. The optical modes were measured at a wavelength of 633 nm using a model 2010 prism coupler. The near-field intensity files in the visible band were measured and simulated with end-face coupling and FD-BPM methods, respectively. The absorption...
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