Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Optical Properties of Stoichiometric Tb/Mn Co-doped LiNbO3 Single Crystals Dependent on Mn Concentration

Mn 첨가량 변화에 따른 Tb/Mn이 첨가된 화학양론조성 LiNbO3 단결정의 광학적 특성

  • Lee, Sung-Mun (Department of Advanced Materials Engineering, Sungkyunkwan University) ;
  • Shin, Tong-Ik (Department of Advanced Materials Engineering, Sungkyunkwan University) ;
  • Kim, Geun-Young (Department of Advanced Materials Engineering, Sungkyunkwan University) ;
  • Back, Seung-Wook (Hanbon Co., Ltd.) ;
  • Yoon, Dae-Ho (Department of Advanced Materials Engineering, Sungkyunkwan University)
  • 이성문 (성균관대학교 신소재공학과) ;
  • 신동익 (성균관대학교 신소재공학과) ;
  • 김근영 (성균관대학교 신소재공학과) ;
  • 백승욱 ((주) 한본) ;
  • 윤대호 (성균관대학교 신소재공학과)
  • Published : 2004.01.01
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Abstract

Using the Micro-Pulling Down (${\mu}$-PD), $MnO_2$ and $Tb_4O_7$ co-doped crack-free stoichiometric $LiNbO_3$ single crystals were grown in 1.0 mm diameter and 25-30 mm length for c-axis. The homogeneous distributions of $MnO_2$ and $Tb_4O_7$ concentration were confirmed by the Electron Probe Microanalysis (EPMA). Also, the infrared OH absorption band of the single crystals observed by using a Fourier Transform-Infrared Spectrophotometer (FT-IR) at room temperature and the photoluminescence spectra was measured with respect to the $MnO_2$ and $Tb_4O_7$ doping.

Micro-Pulling Down (${\mu}$-PD) 법을 이용하여 $MnO_2$와 $Tb_4O_7$를 첨가하여 crack. 열 strain 등의 결함이 없는 화학양론조성의 $LiNbO_3$ 단결정을 c-축으로 직경 1.0mm, 길이 25-30mm의 크기로 성장시켰다. Electron Probe Micro Analysis (EPMA)를 이용하여 결정 내에 $MnO_2$와 $Tb_4O_7$이 균일하게 분포되어 있음을 확인하였다. 또한 Fourier Transform-Infrared Spectrophotometer (FT-IR)을 사용하여 OH 흡수밴드를 관찰하였고, 성장된 결정의 $MnO_2$와 $Tb_4O_7$ 첨가에 따른 형광특성의 변화를 측정하였다.

Keywords

References

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