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Optical properties of CuCl microcavities with fluctuations in their refractive index profiles along the cavity structures

机译：CuCl微腔的光学特性，其折射率分布沿腔结构发生波动

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摘要

We report on the optical properties of the CuCl microcavities that exhibit fluctuations in their refractive index profiles along the cavity structures. The angle-resolved reflectance spectra of the CuCl microcavities with a cavity length of half-integer multiples for the Z_3 exciton wavelength clearly show three cavity-polariton modes and minor modes. The Rabi splitting energies observed in the cavity-polariton modes are widely controlled by changing the cavity length of the microcavity. To analyze the spectral profile and the Rabi splitting energies qualitatively, the refractive index profiles of the constituent layers in the CuCl microcavities are evaluated using spectroscopic ellipsometry, and the reflectance spectra of the CuCl microcavities with the fluctuations in the refractive index profiles of the microcavity structures are calculated using the nonlocal response theory. The calculated reflectance spectra reproduce very well the cavity-polariton modes and the minor modes, including their energies and spectral profiles, in the observed reflectance spectra, which indicates an essential role of the fluctuation effect of the refractive indices of constituent layers in controlling the Rabi splitting energies and the quality factor of the microcavity.
机译：我们报告了CuCl微腔的光学特性，这些光学特性沿腔结构在其折射率分布方面表现出波动。腔长为Z_3激子波长的半整数倍的腔长的CuCl微腔的角分辨反射光谱清楚地显示了三种腔极化模式和次要模式。通过改变微腔的腔长，可以广泛地控制在腔极化模式下观察到的拉比分裂能。为了定性地分析光谱轮廓和拉比分裂能，使用分光椭偏仪评估了CuCl微腔中各组成层的折射率分布，并分析了CuCl微腔的反射光谱以及微腔结构折射率分布的波动情况。使用非局部响应理论进行计算。计算得到的反射光谱在观察到的反射光谱中很好地再现了腔极化模式和次要模式，包括它们的能量和光谱轮廓，这表明了组成层的折射率波动效应在控制拉比中的重要作用。分裂能和微腔的品质因数。

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  • 来源
    《Physical review》 |2013年第20期|205311.1-205311.9|共9页
  • 作者

    S. Yoshino; G. Oohata; Y. Shim; H. Ishihara; K. Mizoguchi;

  • 作者单位

    Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai 599-8531, Japan;

    Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai 599-8531, Japan;

    Department of Physics and Electronics, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku,Sakai 599-8531, Japan;

    Department of Physics and Electronics, Graduate School of Engineering, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku,Sakai 599-8531, Japan;

    Department of Physical Science, Graduate School of Science, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai 599-8531, Japan;

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

    multilayers; superlattices; excitons and related phenomena;

    机译：多层超晶格激子及相关现象;

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