Single crystal growth and optical properties of LiNbO3 doped with Er3+, Tm3+ and Mg2+

Izabella Pracka; B. Surma; Marek Swirkowicz; Malgorzata Mozdzonek

doi:10.1117/12.224990

16 October 1995 Single crystal growth and optical properties of LiNbO3 doped with Er3+, Tm3+ and Mg2+

Izabella Pracka, B. Surma, Marek Swirkowicz, Malgorzata Mozdzonek

Proceedings Volume 2373, Solid State Crystals: Materials Science and Applications; (1995) https://doi.org/10.1117/12.224990
Event: Solid State Crystals: Materials Science and Applications, 1994, Zakopane, Poland

Abstract

Single crystals of LiNbO₃:Er³⁺, LiNbO₃:Tm³⁺, LiNbO₃:Er³⁺ + Tm³⁺ and LiNbO₃:Er³⁺ + Tm³⁺ + Mg²⁺ were grown by the Czochralski method starting from the congruently melting composition. Uniformly doped crystals were obtained at pulling rates 1 - 2 mm/h and rotation rates 5 - 20 rpm. The crystals were grown either in Y or in Z direction. The as-grown crystals were regular and free of macroscopic defects. The poling of crystals was carried out as a separate operation. Electrodiffusion was not observed during poling which was confirmed by x-ray microprobe analysis. The absorption spectra of Tm³⁺, Er³⁺ and Mg²⁺ doped LiNbO₃ single crystals were studied in spectral range 2000 - 28,000 cm^-1 at temperatures from 15 to 300 K. The interaction between Tm³⁺ and Er³⁺ ions resulting in changing of absorption spectra structure for particular terms related to Tm³⁺ and Er³⁺ ions has been observed.

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Izabella Pracka, B. Surma, Marek Swirkowicz, and Malgorzata Mozdzonek "Single crystal growth and optical properties of LiNbO3 doped with Er3+, Tm3+ and Mg2+", Proc. SPIE 2373, Solid State Crystals: Materials Science and Applications, (16 October 1995); https://doi.org/10.1117/12.224990

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