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Chirp control of tunable terahertz synchrotron radiation

机译：可调Trairtz同步辐射的啁啾控制

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摘要

It is of scientific significance to explore the terahertz radiation source with the performances of high power, tunable frequency, and controllable chirp for the realization of coherent control of quantum systems. How to realize frequency chirp control of terahertz synchrotron radiation is the last puzzle to be completed. In this Letter, we propose a method to control the radiation frequency chirp with precision. A novel photomixing scheme is presented to generate a longitudinally modulated laser pulse with non-uniform time intervals between the adjacent micro-peaks, which means that there is a chirp in the modulation frequency, and this chirp can be continuously tuned. The interaction is made to occur between an electron beam and the modulated laser pulse in a modulator (an undulator tuned at the laser wavelength), then terahertz synchrotron radiation with the same spectrum characteristics as the modulated laser will be generated when the electron beam passes through the following bending magnet. We expect that this method will open a new way for the coherent control of quantum systems in the terahertz regime. (C) 2020 Optical Society of America
机译：利用高功率，可调谐频率和可控啁啾的性能，实现了用于实现量子系统的相干控制的性能的科学意义。如何实现Terahertz同步辐射的频率啁啾控制是待完成的最后一个拼图。在这封信中，我们提出了一种用精度控制辐射频率啁啾的方法。提出了一种新型光掩模方案以在相邻的微峰之间产生具有非均匀时间间隔的纵轨调制的激光脉冲，这意味着在调制频率中存在啁啾，并且可以连续调整该啁啾。使得在调制器中的电子束和调制激光脉冲之间发生相互作用（在激光波长处调谐的波浪），然后当电子束通过时，将产生具有与调制激光相同的光谱特性的太赫兹同步辐射以下弯曲磁铁。我们预计该方法将开启一种新的速度控制Terhertz制度中量子系统的相干控制。 （c）2020美国光学学会

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  • 来源
    《Optics Letters》 |2020年第17期|共4页
  • 作者

    Zhang Haoran; Wang Wenxing; Jiang Shimin; Li Cheng; He Zhigang; Zhang Shancai; Jia Qika; Wang Lin; He Duohui;

  • 作者单位

    Univ Sci &

    Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

    Univ Sci &

    Technol China Natl Synchrotron Radiat Lab Hefei 230029 Anhui Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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