論文

査読有り
2015年11月

Time-resolved observation of coherent excitonic nonlinear response with a table-top narrowband THz pulse wave

APPLIED PHYSICS LETTERS
  • K. Uchida
  • ,
  • H. Hirori
  • ,
  • T. Aoki
  • ,
  • C. Wolpert
  • ,
  • T. Tamaya
  • ,
  • K. Tanaka
  • ,
  • T. Mochizuki
  • ,
  • C. Kim
  • ,
  • M. Yoshita
  • ,
  • H. Akiyama
  • ,
  • L. N. Pfeiffer
  • ,
  • K. W. West

107
22
開始ページ
221106
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1063/1.4936753
出版者・発行元
AMER INST PHYSICS

By combining a tilted-pulse-intensity-front scheme using a LiNbO3 crystal and a chirped-pulsebeating method, we generated a narrowband intense terahertz (THz) pulse, which had a maximum electric field of more than 10 kV/cm at around 2 THz, a bandwidth of similar to 50 GHz, and frequency tunability from 0.5 to 2 THz. By performing THz-pump and near-infrared-probe experiments on GaAs quantum wells, we observed that the resonant excitation of the intraexcitonic 1s-2p transition induces a clear and large Autler-Townes splitting. Our time-resolved measurements show that the splitting energy observed in the rising edge region of electric field is larger than in the constant region. This result implies that the splitting energy depends on the time-averaged THz field over the excitonic dephasing time rather than that at the instant of the exciton creation by a probe pulse. (C) 2015 AIP Publishing LLC.

Web of Science ® 被引用回数 : 15

リンク情報
DOI
https://doi.org/10.1063/1.4936753
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000366311900006&DestApp=WOS_CPL
ID情報
  • DOI : 10.1063/1.4936753
  • ISSN : 0003-6951
  • eISSN : 1077-3118
  • Web of Science ID : WOS:000366311900006

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