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Orientation dependence of dispersion and band gap of PIMNT single crystals

机译:PIMNT单晶的色散和带隙的取向依赖性

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摘要

As piezoelectric materials, optical properties of xPb(In_(1/2)Nbi_(1/2))O_3-(l-x-y)Pb(Mg_(1/3)Nb_(2/3)O_(3-y)PbTiO_3 single crystals were not perfectly known. Here refractive indices and optical transmission of 0.25Pb(In_(1/2)Nbi_(1/2))O_3-0.42Pb(Mg_(1/3))O_3-0.33PbTiO_3 (PIMNT) single crystal are investigated after poled along different directions. Cauchy dispersion equations of the refractive indices were obtained by least square fitting, which can be used to calculate the refractive indices in the low absorption wavelength range. After poled along [Oil] direction, the optical transmission of PIMNT single crystal is more than 65% above 0.5 μm, which is much higher than that of [001] and [111] directions. Energy band gap was obtained from absorption coefficient.
机译:作为压电材料的xPb(In_(1/2)Nbi_(1/2))O_3-(lxy)Pb(Mg_(1/3)Nb_(2/3)O_(3-y)PbTiO_3单晶的光学性质0.25Pb(In_(1/2)Nbi_(1/2))O_3-3-0.42Pb(Mg_(1/3))O_3-0.33PbTiO_3(PIMNT)单晶的折射率和光学透射率沿不同方向极化后,通过最小二乘拟合得到了折射率的柯西色散方程,可用于计算低吸收波长范围内的折射率。单晶在0.5μm以上大于65%,远高于[001]和[111]方向,由吸收系数求出能带隙。

著录项

  • 来源
    《Nanophotonics Australasia 2017》|2017年|104566A.1-104566A.6|共6页
  • 会议地点 Melbourne(AU)
  • 作者单位

    College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China;

    College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China,Institute of Materials Science and Engineering, Ningbo University, Ningbo 315211, China;

    College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China;

    College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China;

    College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China;

    College of Science, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China,Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    PIMNT, refractive index, optical transmission, band gap;

    机译:PIMNT,折射率,光传输,带隙;

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