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Optical detection of plasmonic and interband excitations in 1-nm-wide indium atomic wires

Infrared spectroscopy is demonstrated to sensitively detect electronic excitations in 1-nm-wide wires made of indium. The polarization-dependent spectra measured at room temperature show a strong broadband plasmonic absorption feature in the direction parallel to the wires, while in the perpendicula...

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Hauptverfasser: Hoang, Chung-Vu (VerfasserIn) , Kubber, C. J. (VerfasserIn) , Han, G. (VerfasserIn) , Rigamonti, S. (VerfasserIn) , Sanchez-Portal, D. (VerfasserIn) , Enders, D. (VerfasserIn) , Pucci, A. (VerfasserIn) , Nagao, T. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 14 June 2010
In: Applied physics letters
Year: 2010, Jahrgang: 96, Heft: 24, Pages: 1-3
ISSN:1077-3118
DOI:10.1063/1.3451461
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1063/1.3451461
Verlag, lizenzpflichtig, Volltext: https://aip.scitation.org/doi/10.1063/1.3451461
Volltext
Verfasserangaben:H.V. Chung, C.J. Kubber, G. Han, S. Rigamonti, D. Sanchez-Portal, D. Enders, A. Pucci, and T. Nagao
Beschreibung
Zusammenfassung:Infrared spectroscopy is demonstrated to sensitively detect electronic excitations in 1-nm-wide wires made of indium. The polarization-dependent spectra measured at room temperature show a strong broadband plasmonic absorption feature in the direction parallel to the wires, while in the perpendicular direction the wires stay nearly transparent in the same spectral range. At 88 K the wires do not show this broadband absorption anymore, but instead, several interband-transition features arise for both polarizations, in agreement to the gap opening of the metal-to-insulator transition as known for this one-dimensional structure.
Beschreibung:Gesehen am 22.03.2023
Beschreibung:Online Resource
ISSN:1077-3118
DOI:10.1063/1.3451461

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