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Propagation of cosine complex variable function Airy-Gaussian beams through the gradient-index medium

机译:余弦复变函数艾里-高斯光束在梯度折射率介质中的传播

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摘要

We introduce a new class of cosine complex variable function Airy-Gaussian (Cos-CVFAiG) beams and investigate their propagation through the gradient-index medium. Deriving the analytical expression, we show the intensity and phase distributions, the propagation trajectory and the Poynting vector. We carry out the numerical experiment to verify the rationality of the model and find that the light intensity distribution is parallel to the y axis in the transverse plane. With the distribution factor increasing, the axial intensity maximum and the number of the side lobes increase as well. Additionally, the distribution factor can change the bend extent of the ballistic trajectory and the intensity distribution region in the x-z plane. We also compare the influences of the gradient refractive index coefficient with the distribution factor on the propagation properties.
机译:我们介绍了一类新的余弦复变函数艾里-高斯(Cos-CVFAiG)光束,并研究了它们在梯度折射率介质中的传播。推导解析表达式,我们显示了强度和相位分布,传播轨迹和Poynting向量。我们进行了数值实验,验证了模型的合理性,发现光强度分布在横断面上平行于y轴。随着分布因子的增加,最大轴向强度和旁瓣的数量也增加。另外,分布因子可以改变弹道的弯曲程度和x-z平面中的强度分布区域。我们还比较了梯度折射率系数和分布系数对传播特性的影响。

著录项

  • 来源
    《Applied physics》 |2019年第6期|91.1-91.8|共8页
  • 作者单位

    South China Normal Univ, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510006, Guangdong, Peoples R China;

    South China Normal Univ, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510006, Guangdong, Peoples R China;

    South China Normal Univ, Guangdong Prov Key Lab Nanophoton Funct Mat & Dev, Guangzhou 510006, Guangdong, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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