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Optical Investigation of Cu Diffusion Depth in LiNbO3 Crystals Under High-Temperature Treatment

  • Dmytro Sugak
  • Ihor Syvorotka
  • Oleh Buryy
  • Uliana Yakhnevych
  • Natalia Martynyuk
  • Serhij Ubizskii
  • Ghanshyam Singh
  • Vijay Janyani
  • Harsh Kumar
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 472)

Abstract

The paper presents the results of investigations of optical absorption spatial changes in congruent bulk LiNbO3 crystals in 300–1500 nm spectral region along X, Y, and Z directions caused by high-temperature annealing in presence of copper ions. Additional optical absorption was measured at different depths that allows to estimate the spatial distribution of dopant ions. As it is shown, the spatial distributions of absorption caused by copper ions (Cu+ and Cu2+) have got maxima at the distances about 400–600 μm from the crystal edge. The formation of copper oxide ultrafine nanoparticles in the surface layer of LiNbO3 is confirmed by XRD analysis.

Keywords

Lithium niobate Redox treatment Diffusion Quasi-chemical reactions Optical absorption 

Notes

Acknowledgements

The work was supported by Ukrainian Ministry of Education and Science (scientific research project DB/EMSh) and joint Indian-Ukrainian project M/201-2017. The authors are grateful to Dr. Iwan Solskii (SRC ‘Carat’) for growing the crystal for investigations and to Mr. Vasyl Baluk for XRD measurements.

References

  1. 1.
    Volk T, Wöhlecke M (2009) Lithium niobate: defects, photorefraction and ferroelectric switching. SpringerGoogle Scholar
  2. 2.
    Arizmendi L, Cabrera JM, Agullo-Lopez F (1984) Defects induced in pure and doped LiNbO3 by irradiation and thermal reduction. J Phys C Solid State Phys 17:515–529CrossRefGoogle Scholar
  3. 3.
    Ivanov VSh, Ganshin VA, Korkishko YuN (1992) Analysis of ion exchanged Me:LiNbO3 and Cu:LiTaO3 waveguides by AES, SAM, EPR and optical methods. Vacuum 43:317–324CrossRefGoogle Scholar
  4. 4.
    Caccavale F, Sada C, Segato F, Bogomolova LD, Krasil’nikova NA, Korkishko YN, Fedorov VA, Morozova TV (2000) Copper-lithium ion exchange in LiNbO3. J Mater Res 15:1120–1124CrossRefGoogle Scholar
  5. 5.
    Kar S, Bartwal KS (2008) Cu2+ ion in-diffusion in congruent LiNbO3 single crystals. Mater Lett 62:3934–3936CrossRefGoogle Scholar
  6. 6.
    Kobayashi T, Muto K, Kai J, Kawamori A (1979) EPR and optical studies of LiNbO3 doped with Cu2+ ions. J Mag Res 34:459–466Google Scholar
  7. 7.
    Mikami O (1974) Cu-diffused layers in LiNbO3 for reversible holographic storage. Opt Comm 11:30–32CrossRefGoogle Scholar
  8. 8.
    Noda J, Saku T, Uchida N (1974) Fabrication of optical waveguiding layer in LiTaO3 by Cu diffusion. Appl Phys Lett 25:308–310CrossRefGoogle Scholar
  9. 9.
    Buse K, Jermann F, Krätzig E (1994) Infrared holographic recording in LiNbO3:Cu. Appl Phys A Solids Surf 58:191–195CrossRefGoogle Scholar
  10. 10.
    Solskii IM, Sugak DYu, Vakiv MM (2013) Growing large size complex oxide single crystals by Czochralski technique for electronic devices. Acta Phys Pol A 124:314–320CrossRefGoogle Scholar
  11. 11.
    Yatsenko A, Pritulenko A, Yevdokimov S, Sugak D, Syvorotka I, Sugak Yu, Solskii I, Vakiv M (2015) The influence of annealing in saturated water vapor on LiNbO3 crystals optical and electrical properties. Solid State Phenom 230:233–237CrossRefGoogle Scholar
  12. 12.
    Crank, J.: The mathematics of diffusion. Clarendon Press, 1975Google Scholar
  13. 13.
    Dexter DL (1956) Absorption of light by atoms in solids. Phys Rev 101:48–55CrossRefGoogle Scholar
  14. 14.
    Kuzminov YuS (2012) Lithium niobate crystal. Viva BooksGoogle Scholar
  15. 15.
    Bobrov YuA, Ganshin VA, Ivanov VSh, Korkishko YuN, Morozova TV (1991) Formation of Cu:LiTaO3 exchanged waveguides and their investigations. Phys Stat Sol A 123:317–324CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Dmytro Sugak
    • 1
    • 2
  • Ihor Syvorotka
    • 2
  • Oleh Buryy
    • 1
  • Uliana Yakhnevych
    • 1
  • Natalia Martynyuk
    • 1
  • Serhij Ubizskii
    • 1
  • Ghanshyam Singh
    • 3
  • Vijay Janyani
    • 3
  • Harsh Kumar
    • 3
  1. 1.Semiconductor Electronics DepartmentLviv Polytechnic National UniversityLvivUkraine
  2. 2.Scientific Research Company ‘Carat’LvivUkraine
  3. 3.Malaviya National Institute of TechnologyJaipurIndia

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