Growth and Characterization of LiNbO3 Single Crystals Doped with Cu and Fe Ions

Pracka, I.; Bajor, Andrzej L.; Kaczmarek, S.M.; Świrkowicz, M.; Kaczmarek, Barbara; Kisielewski, J.; Łukasiewicz, T.

doi:10.1002/(sici)1521-4079(199906)34:5/6<627::aid-crat627>3.0.co;2-0

Cited by 29 publications

(10 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A wide complex band of induced absorption appears in integral spectra of LN crystals after high‐temperature annealing in the presence of copper oxide. The form of this band is in good agreement with the previously published data on optical properties of LiNbO 3 doped by copper during the crystal growth . A similar complex band was also observed in refs.…”

Section: Resultssupporting

confidence: 92%

Comparative Investigations of Nanohardness and Impurity Distribution Profiles of Lithium Niobate Single Crystals Diffusion Doped by Copper Ions

Sugak

Syvorotka

Yakhnevych

et al. 2019

Crystal Research and Technology

View full text Add to dashboard Cite

Spatial changes of optical and mechanical properties of doped lithium niobate (LN, LiNbO3) single crystals are investigated. The crystals are doped with copper ions by thermal diffusion at elevated temperatures. LiNbO3 crystal absorption spectra are recorded in a direction perpendicular to the direction of diffusion. The concentrations of copper ions are calculated using the Smakula–Dexter formula. To determine a relation between changes of optical and mechanical properties, the hardness profiles of the doped crystals are investigated by the nanoindentation technique. Young's modulus and hardness are specified in accordance with the Oliver–Pharr method.

show abstract

Section: Resultssupporting

confidence: 92%

Comparative Investigations of Nanohardness and Impurity Distribution Profiles of Lithium Niobate Single Crystals Diffusion Doped by Copper Ions

Sugak

Syvorotka

Yakhnevych

et al. 2019

Crystal Research and Technology

View full text Add to dashboard Cite

show abstract

“…This may be attributed to impurity-induced band tailing as well as broad absorption of Ru ions spanning from the visible to the band edge. A shift in the band edge is reported by various authors in the case of Fe-doped LN with a variation of dopant concentration (Bhatt et al, 2013;Pracka et al, 1999).…”

Section: Uv-vis-nir Transmission Analysismentioning

confidence: 72%

Crystal growth of Ru-doped congruent LiNbO₃and investigation of crystalline perfection and optical properties

et al. 2015

View full text Add to dashboard Cite

Single crystals of undoped and Ru-doped congruent LiNbO 3 (LN) were successfully grown by the Czochralski method. The axial and radial gradient of the radio frequency furnace was controlled in order to obtain crack-free single crystals. Wafers were cut from the grown Ru-doped single crystal at different axial positions along the growth direction and subjected to various characterization analyses. Good optical homogeneity and low residual strain in the grown crystal is confirmed by the conoscopy patterns. Further, it is confirmed that Ru doping does not influence the optical sign of the crystal. From a high-resolution X-ray diffractometry analysis, it is evident that the as-grown undoped LN crystal exhibited better crystalline perfection with a single and sharp diffraction curve in comparison to the Ru-doped crystals, which are characterized by a broader diffraction curve. Absorption coefficient and band-gap analysis across the axial length revealed a concentration variation of Ru across the length. Refractive index measurements carried out using a prism coupler showed variation in the optical birefringence, also due to the variation of Ru concentration at different positions of the grown single crystal.

show abstract

“…The ionizing radiation can also affect the optical properties of the LNO crystals and there are many publications devoted to the investigation of the colour centres (CC) created by various kinds of ionizing radiation (UV light, gamma quanta, electrons, neutrons) on pure LNO crystals or doped by photorefractive ions, for example in [9][10][11][12][13]. However, the CC formation in these * corresponding author; e-mail: ppotera@univ.rzeszow.pl crystals under the ion irradiation was studied insufficiently, and was performed practically only for light ions (for example 25 MeV protons, 150 keV Ar + ions) or for low-energy heavy ions (for example 23 keV Au + , 60 keV Cu + ) [14][15][16][17].…”

Section: Introductionmentioning

confidence: 73%

“…The investigated crystals were grown by the Czochralski method in condition described in [9]. For optical measurements the polished plates of the crystals with thickness of 1 mm were used.…”

Section: Methodsmentioning

confidence: 99%

Influence of Annealing and Irradiation by Heavy Ions on Optical Absorption of Doped Lithium Niobate Crystals

Потера

Stefaniuk

2016

Acta Phys. Pol. A

View full text Add to dashboard Cite

The present work is devoted to investigation of optical absorption changes in Fe and Cu doped LiNbO3 (LNO) single crystals induced during annealing in vacuum and air as well as under influence of the 209 Bi ions irradiation with energy 11.4 MeV/u (MeV per nucleon) and a fluence 5 × 10 11 cm −2 at room temperature. The analysis of changes of absorption of the crystal during air annealing have been studied in the Arrhenius coordinates and activation energies have been determined.

show abstract

Growth and Characterization of LiNbO3 Single Crystals Doped with Cu and Fe Ions

Cited by 29 publications

References 12 publications

Comparative Investigations of Nanohardness and Impurity Distribution Profiles of Lithium Niobate Single Crystals Diffusion Doped by Copper Ions

Comparative Investigations of Nanohardness and Impurity Distribution Profiles of Lithium Niobate Single Crystals Diffusion Doped by Copper Ions

Crystal growth of Ru-doped congruent LiNbO₃and investigation of crystalline perfection and optical properties

Influence of Annealing and Irradiation by Heavy Ions on Optical Absorption of Doped Lithium Niobate Crystals

Contact Info

Product

Resources

About

Growth and Characterization of LiNbO3 Single Crystals Doped with Cu and Fe Ions

Cited by 29 publications

References 12 publications

Comparative Investigations of Nanohardness and Impurity Distribution Profiles of Lithium Niobate Single Crystals Diffusion Doped by Copper Ions

Comparative Investigations of Nanohardness and Impurity Distribution Profiles of Lithium Niobate Single Crystals Diffusion Doped by Copper Ions

Crystal growth of Ru-doped congruent LiNbO3and investigation of crystalline perfection and optical properties

Influence of Annealing and Irradiation by Heavy Ions on Optical Absorption of Doped Lithium Niobate Crystals

Contact Info

Product

Resources

About

Crystal growth of Ru-doped congruent LiNbO₃and investigation of crystalline perfection and optical properties