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首页> 外文期刊>Applied physics express >Efficient terahertz wave generation of diabolo-shaped Fe/Pt spintronic antennas driven by a 780 nm pump beam
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Efficient terahertz wave generation of diabolo-shaped Fe/Pt spintronic antennas driven by a 780 nm pump beam

机译:高效的Terahertz波生成由780nm泵浦梁驱动的竹形Fe / Pt闪光灯天线

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摘要

We report on efficient terahertz (THz) wave generation of Fe/Pt diabolo-shaped spintronic antennas with different Pt thicknesses fabricated on MgO substrates. Compared with the antenna-free spintronic bilayer, similar to 45% and similar to 98% emission amplitude improvements were obtained when using the antennas with thin and thick Pt, respectively, as THz radiation sources. The improvement can be attributed to the enhanced outcoupling of THz radiation to free space and to the enhanced THz emission with the deposition of thicker Pt layer at the displacement current direction. Our results suggest that efficient spintronic radiation sources can be obtained with proper design of these THz emitters.
机译:我们报告了在MgO基板上制造的不同PT厚度的Fe / Pt型旋转型旋转天线的高效太赫兹(THz)波产生。 与天线的旋转式双层相比,类似于45%且类似于98%的排放幅度,当使用薄且厚的PT作为THz辐射源时,获得了薄的天线。 改善可以归因于THz辐射的增强耦合到自由空间,并且在位移电流方向上沉积较厚的Pt层的增强的THz发射。 我们的研究结果表明,可以通过适当设计这些THz发射器来获得有效的辐射辐射源。

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  • 来源
    《Applied physics express》 |2021年第4期|042008.1-042008.5|共5页
  • 作者单位

    Univ Fukui Res Ctr Dev Far Infrared Reg 3-9-1 Bunkyo Fukui 9108507 Japan;

    Univ Fukui Res Ctr Dev Far Infrared Reg 3-9-1 Bunkyo Fukui 9108507 Japan|Natl Inst Mat Sci Res Ctr Struct Mat 1-2-1 Sengen Tsukuba Ibaraki 3050047 Japan;

    Univ Fukui Res Ctr Dev Far Infrared Reg 3-9-1 Bunkyo Fukui 9108507 Japan;

    Univ Fukui Res Ctr Dev Far Infrared Reg 3-9-1 Bunkyo Fukui 9108507 Japan|Osaka Univ Inst Laser Engn Ultrabroadband Photon Grp 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Univ Fukui Res Ctr Dev Far Infrared Reg 3-9-1 Bunkyo Fukui 9108507 Japan;

    Univ Fukui Res Ctr Dev Far Infrared Reg 3-9-1 Bunkyo Fukui 9108507 Japan;

    Univ Fukui Res Ctr Dev Far Infrared Reg 3-9-1 Bunkyo Fukui 9108507 Japan|Osaka Univ Inst Laser Engn Ultrabroadband Photon Grp 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Univ Fukui Res Ctr Dev Far Infrared Reg 3-9-1 Bunkyo Fukui 9108507 Japan;

    Saga Univ Dept Elect & Elect Engn Synchrotron Light Applicat Ctr 1 Honjo Machi Saga 8408502 Japan;

    Osaka Univ Inst Laser Engn Ultrabroadband Photon Grp 2-6 Yamadaoka Suita Osaka 5650871 Japan;

    Photon Ctr Kaiserslautern D-67663 Kaiserslautern Germany;

    Univ Kaiserslautern D-67663 Kaiserslautern Germany;

    Univ Fukui Res Ctr Dev Far Infrared Reg 3-9-1 Bunkyo Fukui 9108507 Japan;

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

    terahertz; THz sources; laser-driven THz sources; THz spintronics; THz antennas; spintronic antennas;

    机译:Terahertz;Thz来源;激光驱动的THz来源;THz闪光;THZ天线;旋转天线;

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