Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Single crystals growth and properties of $LiNbO_3$ doped with MgO or ZnO : (II) The electrical and optical properties

MgO 또는 ZnO를 첨가한 $LiNbO_3$단결정 성장 및 특성 : (II) 전기적 및 광학적 특성

  • Cho, Hyun (Ceramic Materials Research Institute, Hanyang University) ;
  • Shim, Kwang-Bo (Ceramic Materials Research Institute, Hanyang University) ;
  • Auh, Keun-Ho (Department of Ceramic Engineering, Hanyang University)
  • 조현 (한양대학교 세라믹소재연구소) ;
  • 심광보 (한양대학교 세라믹소재연구소) ;
  • 오근호 (한양대학교 세라믹공학과)
  • Published : 1996.11.01
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Abstract

The electrical and optical properties of the annealed $LiNbO_{3}$ single crystal with congruently melting composition and MgO or ZnO doped $LiNbO_{3}$ single crystal grown by the FZ method. The electrical and optical properties such as electrical conductivity, dielectric constant (Curie temperature), electro-mechanical coupling factor, optical transmittance and refractive indices of the grown crystals were measured and the nonlinear refractive indices of the grown crystals were calculated theoretically. The doping effects of MgO and ZnO were investigated by comparing the electrical and optical properties of the undoped $LiNbO_{3}$ single crystal and those of the $LiNbO_{3}$ single crystals doped with MgO or ZnO.

Floating zone(FZ)법으로 육성하고 annealing한 undoped $LiNbO_3$ 단결정 및 MgO 또는 ZnO를 첨가한 $LiNbO_3$ 단결정의 전기적,광학적 특성을 조사하였다. 전기전도도, 유전율 및 전이온도, 전기.기계결합계수등의 전기적 특성과 광투과율, 굴절율 등의 광학적 특성을 측정하였으며, 비선형 광학특성의 척도라 할 수 있는 비선형 굴절율을 이론적으로 계산하였다. Undoped $LiNbO_3$ 단결정과 MgO 또는 ZnO를 첨가한 $LiNbO_3$ 단결정의 전기적, 광학적 특성을 비교함으로서 MgO 또는 ZnO의 첨가가 $LiNbO_3$ 단결정의 전기적 및 광학적 특성에 미치는 영향을 조사하였다.

Keywords

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