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

K. Uchida, T. Otobe, T. Mochizuki, C. Kim, M. Yoshita, K. Tanaka, H. Akiyama, L. N. Pfeiffer, K. W. West, and H. Hirori
Phys. Rev. B 97, 165122 – Published 13 April 2018

Abstract

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.

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  • Received 27 December 2017

DOI:https://doi.org/10.1103/PhysRevB.97.165122

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

K. Uchida1, T. Otobe2, T. Mochizuki3, C. Kim4, M. Yoshita3, K. Tanaka1,5, H. Akiyama4,6, L. N. Pfeiffer7, K. W. West7, and H. Hirori5,8,*

  • 1Department of Physics, Graduate School of Science, Kyoto University, Kyoto, Kyoto 606-8502, Japan
  • 2Kansai Photon Science Institute, National Institutes for Quantum and Radiological Science and Technology, Kizugawa, Kyoto 619-0615, Japan
  • 3Fukushima Renewable Energy Institute, National Institute of Advanced Industrial Science and Technology, Koriyama, Fukushima 963-0298, Japan
  • 4Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
  • 5Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto, Kyoto 606-8501, Japan
  • 6AIST-UTokyo OPERANDO-OIL, University of Tokyo, Kashiwa, Chiba 277-8589, Japan
  • 7Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA
  • 8Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan

  • *hirori@scl.kyoto-u.ac.jp

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Vol. 97, Iss. 16 — 15 April 2018

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