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Coherent detection of THz-induced sideband emission from excitons in the nonperturbative regime

机译：非扰动条件下激子的THz诱导边带发射的相干检测

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摘要

Strong interaction of a terahertz (THz) wave with excitons induces nonperturbative optical effects such as Rabi splitting and high-order sideband generation. Here, we investigated coherent properties of THz-induced sideband emissions from GaAs/AlGaAs multiquantum wells. With increasing THz electric field, optical susceptibility of the THz-dressed exciton shows a redshift with spectral broadening and extraordinary phase shift. This implies that the field ionization of the 1s exciton modifies the THz-dressed exciton in the nonperturbative regime.
机译：太赫兹（THz）波与激子的强相互作用会引起无扰动的光学效应，例如拉比分裂和高阶边带生成。在这里，我们研究了GaAs / AlGaAs多量子阱中太赫兹引起的边带发射的相干特性。随着太赫兹电场的增加，装有太赫兹的激子的光磁化率会发生红移，并伴有光谱展宽和非同相移。这意味着1s激子的场电离在非扰动状态下会修改THz修正的激子。

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  • 来源
    《Physical review》 |2018年第16期|165122.1-165122.7|共7页
  • 作者

    K. Uchida; T. Otobe; T. Mochizuki; C. Kim; M. Yoshita; K. Tanaka; H. Akiyama; L. N. Pfeiffer; K. W. West; H. Hirori;

  • 作者单位

    Department of Physics. Graduate School of Science, Kyoto University, Kyoto, Kyoto 606-8502, Japan;

    Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0615, Japan;

    Fukushima Renewable Energy Institute, National Institute of Advanced Industrial Science and Technology, Koriyama, Fukushima 963-0298, Japan;

    Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan;

    Fukushima Renewable Energy Institute, National Institute of Advanced Industrial Science and Technology, Koriyama, Fukushima 963-0298, Japan;

    Department of Physics. Graduate School of Science, Kyoto University, Kyoto, Kyoto 606-8502, Japan,Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto, Kyoto 606-8501, Japan;

    Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan,AIST-UTokyo OPERANDO-OIL, University of Tokyo, Kashiwa, Chiba 277-8589, Japan;

    Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA;

    Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA;

    Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto, Kyoto 606-8501, Japan,Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan;

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