Influence of Mg on the Structural and Optical Properties of LiNbO₃ Thin Films Grown by Polymeric Precursor Method

Abstract:

A polymeric precursor solution was used to deposit pure and Mg doped LiNbO3 thin films on sapphire substrates by spin-coating. The effects of magnesium addition on crystallinity, morphology and optical properties of the annealed films were investigated. X-ray diffraction patterns indicate the oriented growth of the films. Phi-scan diffraction evidenced the epitaxial growth with two in-plane variants. AFM studies show that the films are very homogeneous, dense and present smooth surfaces. The refractive index and optical losses obtained by the prism coupling method were influenced by the magnesium addition.

• Periodical: Materials Science Forum (Volumes 498-499)
• Pages: 342-349
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.498-499.342
• Online since: November 2005
• Authors: A.Z. Simões, V. Bouquet, F. Moura, A. Ries, M.A. Zaghete, José Arana Varela
• Keywords: LiNbO₃, Thin Film, Waveguide

References

[1] R. S. Weis and T. K. Gaylord, Appl. Phys A 37 (1985), p.191.

[2] K. Kikita, Y. Isobe, T. Yogo, S. Ono and S. I. Hirano, J. Am. Ceram. Soc 79 (1996), p.2289.

[3] Hirano, K. Kikuta and K. Kato, Adv. Ceram. Mat. 200 (1990), p.3.

[4] Y. Furukawa, K. Katamura, N. Igi and J. M. Martin, J. Cryst. Growth 211 (2000), p.230.

[5] M. P. Micheli, Mater. Res. Symp. Proc 244, (1992), p.295.

[6] Y. Sakashita, H. Segawa, J. Appl. Phys 77 (1995), p.5995.

[7] T. Gilbert, C. -Y. Hung, T.E. Schlesinger, M. Migliuolo, J. Appl. Phys. 79 (1996), p.3548.

[8] P. Aubert, G. Garry, R. Bisaro, J. Garcia Lopez, Appl. Surf. Sci 86 (1995), p.144.

[9] T.A. Derouin, C.D.E. Lakeman, X.H. Wu, F.F. Lange, J. Mater. Res 12 (1997), p.1391.

[10] V. Bouquet, M.I.B. Bernardi, S.M. Zanetti, E. Longo, E.R. Leite, J.A. Varela, M. Guilloux Viry, A. Perrin, J. Mater. Res 15 (2000), p.2446.

DOI: 10.1557/jmr.2000.0351

[11] S.Y. Lee, R.S. Feigelson, J. Cryst. Growth 186 (1998), p.594.

[12] M.P. Pechini, US Patent No. 3. 330 697, 11 July (1967).

[13] K. Nashimoto, H. Moruama, E. Osakabe, Jpn. J. Appl. Phs 35 (1996), p.4936.

[14] T.A. Derouin, C.D.E. Lakeman, X.H. Wu, J.S. Speck, F .F. Lange, J. Mater. Res 12 (1997), p.1391.

[15] L.E. Cross, R. E. Newnham, 1987, History of Ferroelectrics, Vol III, Westerville.

[16] P. Aubert, G. Gary, R. Bizaro, J. G. Lopez and C. Urlacher, Microelectronic Eng 29 (1995), p.107.

[17] K. Nashimoto, H. Moriyama and E. Osakabe, Jpn. J. Appl. Phys 35 (1996), p.4936.

[18] P. G. Clem and D. A. Payne, Mater. Res. Soc. Symp. Proc 401(1996), p.249.