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

  • 제16권2호
  • /
  • Pages.53-58
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  • 2006
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  • 1225-1429(pISSN)
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  • 2234-5078(eISSN)
한국결정성장학회 (The Korea Association of Crystal Growth)
권호 표지

조화용융조성 $LiNbO_3$의 주기적 분극 반전 동안 도메인 생성 및 이동에 관한 연구

Domain formation and expansion during periodic poling of congruent $LiNbO_3$ using external field

  • 권순우 (한국항공대학교 항공재료공학과) ;
  • 양우석 (전자부품연구원 나노바이오포토닉스팀) ;
  • 이형만 (전자부품연구원 나노바이오포토닉스팀) ;
  • 김우경 (전자부품연구원 나노바이오포토닉스팀) ;
  • 이한영 (전자부품연구원 나노바이오포토닉스팀) ;
  • 윤대호 (성균관대학교 신소재공학과) ;
  • 송요승 (한국항공대학교 항공재료공학과)
  • Kwon, S.W. (Department of Materials Engineering, Hankuk Aviation University) ;
  • Yang, W.S. (Nano Bio-photonics Team, Korea Electronics Technology Institute) ;
  • Lee, H.M. (Nano Bio-photonics Team, Korea Electronics Technology Institute) ;
  • Kim, W.K. (Nano Bio-photonics Team, Korea Electronics Technology Institute) ;
  • Lee, H.Y. (Nano Bio-photonics Team, Korea Electronics Technology Institute) ;
  • Yoon, D.H. (Department of Advanced Material Engineering, Sungkyunkwan University) ;
  • Song, Y.S. (Department of Materials Engineering, Hankuk Aviation University)
  • 발행 : 2006.04.30
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초록

조화용융조성 $LiNbO_3$ 결정에 외부 전계를 인가하였을 때 초기 도메인 생성 및 이동에 관하여 연구하였다. 0.5mm 두께의 $LiNbO_3$ 결정에 23.5, 22.0, 21.0kV/mm의 전계를 인가하였을 때 도메인 벽은 각각 28.70, 16.02, $5.75{\mu}m/sec$의 속도를 나타내었다. 분극 반전 시스템에 전류 제어를 위한 외부저항으로 $1 M{\Omega}$을 사용하였을 시 너무 빠른 도메인 성장으로 인하여 원활한 분극 반전 제어가 이루어지지 않으므로 $10 M{\Omega}$ 외부저항을 사용하여 전하량을 제어하여 50% duty cycle을 가진 주기적 분극 반전 $LiNbO_3$ 결정을 제작하였다.

When external field was applied to congruent $LiNbO_3$, it was investgated for domain formation and expansion of $LiNbO_3$. The domain wall velocities of 0.5 mm thickness $LiNbO_3$ were 28.70, 16.02 and $5.75{\mu}m/sec$ under poling field of 23.5, 22.0 and 21.0 kV/mm, respectively. As $1 M{\Omega}$ resistor was used in domain inversion system, harmonic domain inversion was not achieved by rapid domain expansion. And 50% duty cycle periodically poled $LiNbO_3$ have been fabricated by charge control using $10 M{\Omega}$ resistor.

키워드

참고문헌

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