한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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폴링에 의한 비정질 BaTiO3 박막의 광학적 특성 조사 및 녹색광 발생

Green Generation and Investigation of Optical Properties of Amorphous BaTiO3 by Poling

  • 김응수 (부산외국어대학교전자로봇공학과)
  • Kim, Eung-Soo (Dept. Electronic Robot Eng., Busan University of Foreign Studies)
  • 투고 : 2020.01.31
  • 심사 : 2020.02.15
  • 발행 : 2020.02.29
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초록

유리기판위에 스퍼터링법으로 비정질 BaTiO3막을 증착시켰다. 증착된 BaTiO3 막을 코로나 폴링을 하여 광학적 특성을 조사하였다. 가시광영역에서 투과율은 80% 이상으로 좋았으며, 비선형광학 특성은 폴링 조건에 따라 영향을 받으며, 크기는 1.15pm/V였다. 장기특성도 한달이 지나도 60%이상 유지하였다. 또한 BaTiO3 박막으로부터 녹색광 발생을 확인하였다.

BaTiO3 thin films was deposited on the slide glass by RF sputter. We have investigated the optical properties of BaTiO3 film after corona poling process. The transmission characteristics was very good over 80% in visible region and second order nonlinear optical coefficient depends on the poling conditions. The nonlinear optical coefficient of poled BaTiO3 films was about 1.15pm/V. The relaxation of second order nonlinear optical was remained around 60% of the initial value for a long time. In addition we have observed the green light generation from BaTiO3 films.

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참고문헌

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