Growth of epitaxial LiNbO3 films on sapphire substrates and their nonlinear optical properties

T. W. Noh; See Hyung Lee; Dong Wook Kim; Sang Moon Oh; Moo Jong Lim; S. D. Lee; S. H. Han; J. W. Wu

Growth of epitaxial LiNbO₃ films on sapphire substrates and their nonlinear optical properties

T. W. Noh, See Hyung Lee, Dong Wook Kim, Sang Moon Oh, Moo Jong Lim, S. D. Lee, S. H. Han, J. W. Wu

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Epitaxial LiNbO₃ films, i.e., LiNbO₃(0001)/Al₂O₃(0001), LiNbO₃(0001)/Al₂O₃(1120), and LiNbO₃(1120)/Al₂O₃(1120) films, were grown by the pulsed laser deposition. By varying the growth conditions, it was possible to control various growth behaviors, i.e., twin-ratios and crystal orientations. The nonlinear optical properties of the films including the second harmonic generation (SHG) and electro-optic (EO) properties were investigated. The SHG patterns of LiNbO₃(0001)/Al₂O₃(0001) films were strongly dependent on their twin-ratios. In order to analyze them, the contributions of the structural twins and polarization domains were taken into account. The linear EO property of the LiNbO₃(0001)/Al₂O₃(0001) film was found to be as good as that of single cystal. However, the LiNbO₃(1120)/Al₂O₃(1120) film shows a very large quadratic EO behavior with an effective coefficient of 2.38×10^-15 m²/V².

Original language	English
Pages (from-to)	S1307-S1310
Journal	Journal of the Korean Physical Society
Volume	32
Issue number	4 SUPPL.
State	Published - 1998

Cite this

@article{3f2bee48272541edb947a4f5614b7fc0,

title = "Growth of epitaxial LiNbO3 films on sapphire substrates and their nonlinear optical properties",

abstract = "Epitaxial LiNbO3 films, i.e., LiNbO3(0001)/Al2O3(0001), LiNbO3(0001)/Al2O3(1120), and LiNbO3(1120)/Al2O3(1120) films, were grown by the pulsed laser deposition. By varying the growth conditions, it was possible to control various growth behaviors, i.e., twin-ratios and crystal orientations. The nonlinear optical properties of the films including the second harmonic generation (SHG) and electro-optic (EO) properties were investigated. The SHG patterns of LiNbO3(0001)/Al2O3(0001) films were strongly dependent on their twin-ratios. In order to analyze them, the contributions of the structural twins and polarization domains were taken into account. The linear EO property of the LiNbO3(0001)/Al2O3(0001) film was found to be as good as that of single cystal. However, the LiNbO3(1120)/Al2O3(1120) film shows a very large quadratic EO behavior with an effective coefficient of 2.38×10-15 m2/V2.",

author = "Noh, {T. W.} and Lee, {See Hyung} and Kim, {Dong Wook} and Oh, {Sang Moon} and Lim, {Moo Jong} and Lee, {S. D.} and Han, {S. H.} and Wu, {J. W.}",

year = "1998",

language = "English",

volume = "32",

pages = "S1307--S1310",

journal = "Journal of the Korean Physical Society",

issn = "0374-4884",

publisher = "Korean Physical Society",

number = "4 SUPPL.",

}

TY - JOUR

T1 - Growth of epitaxial LiNbO3 films on sapphire substrates and their nonlinear optical properties

AU - Noh, T. W.

AU - Lee, See Hyung

AU - Kim, Dong Wook

AU - Oh, Sang Moon

AU - Lim, Moo Jong

AU - Lee, S. D.

AU - Han, S. H.

AU - Wu, J. W.

PY - 1998

Y1 - 1998

N2 - Epitaxial LiNbO3 films, i.e., LiNbO3(0001)/Al2O3(0001), LiNbO3(0001)/Al2O3(1120), and LiNbO3(1120)/Al2O3(1120) films, were grown by the pulsed laser deposition. By varying the growth conditions, it was possible to control various growth behaviors, i.e., twin-ratios and crystal orientations. The nonlinear optical properties of the films including the second harmonic generation (SHG) and electro-optic (EO) properties were investigated. The SHG patterns of LiNbO3(0001)/Al2O3(0001) films were strongly dependent on their twin-ratios. In order to analyze them, the contributions of the structural twins and polarization domains were taken into account. The linear EO property of the LiNbO3(0001)/Al2O3(0001) film was found to be as good as that of single cystal. However, the LiNbO3(1120)/Al2O3(1120) film shows a very large quadratic EO behavior with an effective coefficient of 2.38×10-15 m2/V2.

AB - Epitaxial LiNbO3 films, i.e., LiNbO3(0001)/Al2O3(0001), LiNbO3(0001)/Al2O3(1120), and LiNbO3(1120)/Al2O3(1120) films, were grown by the pulsed laser deposition. By varying the growth conditions, it was possible to control various growth behaviors, i.e., twin-ratios and crystal orientations. The nonlinear optical properties of the films including the second harmonic generation (SHG) and electro-optic (EO) properties were investigated. The SHG patterns of LiNbO3(0001)/Al2O3(0001) films were strongly dependent on their twin-ratios. In order to analyze them, the contributions of the structural twins and polarization domains were taken into account. The linear EO property of the LiNbO3(0001)/Al2O3(0001) film was found to be as good as that of single cystal. However, the LiNbO3(1120)/Al2O3(1120) film shows a very large quadratic EO behavior with an effective coefficient of 2.38×10-15 m2/V2.

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M3 - Article

AN - SCOPUS:0032361002

SN - 0374-4884

VL - 32

SP - S1307-S1310

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 4 SUPPL.

ER -

Growth of epitaxial LiNbO3 films on sapphire substrates and their nonlinear optical properties

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Growth of epitaxial LiNbO₃ films on sapphire substrates and their nonlinear optical properties