Article
  • Linear and Nonlinear Optical Properties of Stilbene Derivative Nonlinear Optical Polymer
  • Zyung T, Hwang WY, Kim JJ
  • Stilbene 유도체를 포함하는 비선형 광학 고분자 물질의 선형 및 비선형 광학 특성
  • 정태형, 황월연, 김장주
Abstract
Linear and nonlinear optical properties are measured and discussed for the PMMA based nonlinear optical copolymer with stilbene derivative as side chain. Dispersions of refractive indices with optical wavelength are fitted well with Sellmeier's equation. Evolution of photobleaching proceeds gradually and the bleach front is steeper when bleached with highly absorptive wavelength than when with low absorptive wavelength. Electro-optic coefficient increases linearly with poling field up to glass transition temperature and the rate of increment is 0.15(pm/V)/(MV/m electric field) at 1.3㎛. Relaxation of electro-optic coefficient is very slow, so that the amount of the coefficient was changed little even after 40 days.

stilbene 유도체를 옆사슬로 포함하는 PMMA 기본 사슬 공중합 광학 비선형 고분자의 광학 선형 및 비선형 특성을 측정하고 결과와 측정 방법에 대해 간략히 고찰하였다. 굴절률의 파장에 따른 분산은 Sellmeier 식에 잘 맞았으며 광표백의 진화 과정은 점진적으로 일어났고 흡수가 큰 파장에서 광표백하였을 때 흡수가 작은 파장에 비하여 가파르게 변화하는 것을 보여 주었다. 전기 광학 계수는 poling field의 증가에 따라 유리 전이 온도까지는 선형으로 증가 하였으며 1.3㎛ 파장에서는 0.15(pm/V)/(MV/m 전계)의 비율로 증가하였다. 전기 광학계수의 시간에 따른 완화는 40여일이 지나도 그 크기가 10% 내외에서 큰 변화가 없었다.

Keywords: nonlinear optical polymer; refractive index; electro-optic coefficient; photobleaching

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  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1994; 18(5): 851-859

    Published online Sep 25, 1994