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Plasmonic nonlinearity in GaAs/In0.20Ga0.80As core/shell nanowires
Rana, R.; Balaghi, L.ORC; Fotev, I.ORC; Schneider, H.ORC; Helm, M.; Dimakis, E.ORC; Pashkin, O.ORC
We have investigated the plasmonic response of GaAs/In0.20Ga0.80As core/shell nanowires driven resonantly by strong THz fields with the amplitude of few MV/cm. The plasmon mode exhibits a systematic redshift with the suppression of the spectral weight with the increase of the driving THz field. Interestingly, the scaling of the plasmon parameters does not follow the usual quadratic behavior, indicating an inhomogeneous intervalley electron scattering across the nanowire.
Keywords: Plasmons, Nanowires, Nonlinear optics
  • Contribution to proceedings
    44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 01.-06.09.2019, Paris, France
    2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), IEEE Xplore: IEEEE, 978-1-5386-8285-2
    DOI: 10.1109/IRMMW-THz.2019.8874085

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Permalink: https://www.hzdr.de/publications/Publ-29861
Publ.-Id: 29861