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Proceedings Paper

Growth and basic investigations of LiNbO3 single crystals doped with Dy3+ ions
Author(s): Izabella Pracka; Michal Malinowski; Marek Swirkowicz; Andrzej L. Bajor; B. Surma; Jaroslaw Kisielewski; Tadeusz Lukasiewicz; Zbigniew Galazka
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Paper Abstract

Lithium niobate crystals doped with Dy3+ ions were grown by the Czochralski method. The doping concentrations were 0.3, 1, and 1.7 at.%, respectively. The dopant distribution was measured by the electron microprobe 'JOEL-JXA 50 A'-type device, and from these measurements the segregation coefficient has been found to be close to unity (k approximately equals 0.8). Optical homogeneity of crystals was investigated by the conoscopic and polarimetric methods. For the Z-optical axis direction it was found that the maximum residual birefringence (not exceeding 1.5 multiplied by 10-4), involved by residual stresses, occurred at the perimeters of the crystals, and the remaining crystalline areas were almost entirely free from excessive stresses. The absorption characteristics in the wavelength range of 200 - 6000 nm were measured. The photoluminescence characteristics were also measured in the visible part of the spectrum. It has been found that an important feature associated with luminescence of the Dy3+ in LiNbO3 is its high intensity and long decay time. From this it can be concluded that LiNbO3:Dy3+ is particularly well suited for visible lasers.

Paper Details

Date Published: 14 July 1997
PDF: 4 pages
Proc. SPIE 3178, Solid State Crystals: Growth and Characterization, (14 July 1997); doi: 10.1117/12.280757
Show Author Affiliations
Izabella Pracka, Institute of Electronic Materials Technology (Poland)
Michal Malinowski, Institute of Electronic Materials Technology and Warsaw Univ. of Technology (Poland)
Marek Swirkowicz, Institute of Electronic Materials Technology (Poland)
Andrzej L. Bajor, Institute of Electronic Materials Technology (Poland)
B. Surma, Institute of Electronic Materials Technology (Poland)
Jaroslaw Kisielewski, Institute of Electronic Materials Technology (Poland)
Tadeusz Lukasiewicz, Institute of Electronic Materials Technology and Military Univ. of Technology (Poland)
Zbigniew Galazka, Institute of Electronic Materials Technology (Poland)


Published in SPIE Proceedings Vol. 3178:
Solid State Crystals: Growth and Characterization
Jozef Zmija; Andrzej Majchrowski; Jaroslaw Rutkowski; Jerzy Zielinski, Editor(s)

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