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Optically tunable all-silicon chiral metasurface in terahertz band

机译:Terahertz乐队的光学调谐全硅手性元曲面

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摘要

The chiral optical response represents interactions of circularly polarized light with matter. Chiral metamaterials are widely applied in polarization imaging, optical sensing, and other fields due to their strong ability to manipulate light and form giant circular polarization differential transmittance (CPDT). Here, we propose all-silicon chiral metasurfaces for highly efficient CPDT in the terahertz band. In addition to characterizing the static chiral properties of our proposed metasurface, dynamic chiral behaviors are also characterized by optical pumping (1064 nm continuous wave), and a giant amplitude modulation depth is obtained. The measured results agree well with the simulations. In addition, the application of our chiral metasurface in polarization multiplexed near-field image display is also exhibited. Such chiral metasurface could find many potential applications in photon-spin selective devices, such as circularly polarized light detectors and chiral sensors.
机译:手性光学响应表示圆偏振光与物质的相互作用。由于其强大的操纵光和形成巨型圆偏振差分透射率(CPDT),手性超材料广泛应用于偏振成像,光学传感和其他领域。在这里,我们提出了在太赫兹带中的高效CPDT的全硅手性元措施。除了表征我们所提出的元表面的静态手性特性之外,动态手性行为还通过光学泵(1064nm连续波)来表征,并且获得巨大幅度调制深度。测量结果与模拟吻合良好。此外,还展示了我们的手性元表面在偏振中的偏振近场图像显示器的应用。这种手性元表面可以在光子 - 旋转选择性装置中找到许多潜在的应用,例如圆偏振光探测器和手性传感器。

著录项

  • 来源
    《Applied Physics Letters》 |2021年第5期|051101.1-051101.7|共7页
  • 作者单位

    Key Laboratory of Opto-Electronics Information Technology (Tianjin University) Ministry of Education School of Precision Instruments and Opto-Electronics Engineering Tianjin University Tianjin 300072 China;

    Key Laboratory of Opto-Electronics Information Technology (Tianjin University) Ministry of Education School of Precision Instruments and Opto-Electronics Engineering Tianjin University Tianjin 300072 China;

    Key Laboratory of Opto-Electronics Information Technology (Tianjin University) Ministry of Education School of Precision Instruments and Opto-Electronics Engineering Tianjin University Tianjin 300072 China;

    Key Laboratory of Opto-Electronics Information Technology (Tianjin University) Ministry of Education School of Precision Instruments and Opto-Electronics Engineering Tianjin University Tianjin 300072 China;

    Key Laboratory of Opto-Electronics Information Technology (Tianjin University) Ministry of Education School of Precision Instruments and Opto-Electronics Engineering Tianjin University Tianjin 300072 China;

    Key Laboratory of Opto-Electronics Information Technology (Tianjin University) Ministry of Education School of Precision Instruments and Opto-Electronics Engineering Tianjin University Tianjin 300072 China;

    Key Laboratory of Opto-Electronics Information Technology (Tianjin University) Ministry of Education School of Precision Instruments and Opto-Electronics Engineering Tianjin University Tianjin 300072 China;

    School of Physics and Microelectronics Zhengzhou University Zhengzhou Henan 450001 China;

    Key Laboratory of Opto-Electronics Information Technology (Tianjin University) Ministry of Education School of Precision Instruments and Opto-Electronics Engineering Tianjin University Tianjin 300072 China;

    Key Laboratory of Opto-Electronics Information Technology (Tianjin University) Ministry of Education School of Precision Instruments and Opto-Electronics Engineering Tianjin University Tianjin 300072 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
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  • 入库时间 2022-08-19 00:55:51

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