Ultrafast dynamics of a photoexcited and periodically-driven Dirac semimetal Cd3As2 studied by multiterahertz time-domain spectroscopy

Natsuki Kanda,Yuta Murotani,Tatsuhiko N. Ikeda,Takuya Matsuda,Manik Goyal,Jun Yoshinobu,Yohei Kobayashi,Susanne Stemmer,Ryusuke Matsunaga

2022 Conference on Lasers and Electro-Optics (CLEO)（2022）

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摘要

We investigated ultrafast broadband (12-45 THz) response functions of a photoexcited Dirac semimetal Cd 3 As 2 . Under periodic driving at 30 THz, we observed coherent nonlinear response dominated by stimulated Rayleigh scattering between the photon-dressed states.

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关键词

12-45 THz,photoexcited Dirac semimetal Cd3As2,periodic driving,30 THz,coherent nonlinear response,ultrafast dynamics,multiterahertz time-domain spectroscopy,ultrafast broadband,frequency 30.0 THz,frequency 12.0 THz to 45.0 THz

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