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Er,Yb:YVO4 waveguides deposited on amorphous SiO2 by PLD and UVPLD |
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| Authors: | DR Milev PA Atanasov IG Dimitrov GV Avdeev |
| Affiliation: | a Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee, 1784 Sofia, Bulgaria b Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, “Acad. G. Bonchev” Str., Bl.11, 1113 Sofia, Bulgaria c Institute of Physical Chemistry “Rostislaw Kaischew”, Bulgarian Academy of Sciences, “Acad. G. Bonchev” Str., Bl.11, 1113 Sofia, Bulgaria |
| Abstract: | In this work, erbium, and erbium and ytterbium co-doped YVO4 waveguiding thin films were deposited on amorphous SiO2 substrates by pulsed laser deposition (PLD) and ultraviolet-assisted pulsed laser deposition (UVPLD). The influence of the deposition technique on the structure, morphology, and optical properties of the films was investigated. At lower dopant concentrations the films prepared by UVPLD show better crystallinity and optical properties. All the samples show preferred orientation of the (001) zone axes parallel to the substrate surface. The polycrystalline samples show difference in the refractive indexes ?n (?n = nTE − nTM) for the TE and TM polarizations. |
| Keywords: | Rare-earth doped YVO4 Ultraviolet-assisted PLD Waveguiding thin films |
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