Plasmonic phenomena in indium tin oxide and ITO-Au hybrid films

Stefan Franzen, Crissy Rhodes, Marta Cerruti, Ralph W. Gerber, Mark Losego, Jon Paul Maria, D. E. Aspnes

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Abstract

The observation of surface-plasmon resonances in indium tin oxide (ITO) thin films is complemented with the effects of hybrid ITO/Au conducting layers where charge densities can be tuned. Where carrier densities are similar (ITO and nanoparticle Au), the plasmonic behavior is that of a monolithic ITO thin film. Where the carrier density of one layer is much greater than that of the other (ITO and Au metal), boundary conditions lead to cancelation of the surface plasmon. In the latter case a capacitivelike plasmon resonance is observed for sufficiently thin films.

Original languageEnglish (US)
Pages (from-to)2867-2869
Number of pages3
JournalOptics Letters
Volume34
Issue number18
DOIs
StatePublished - Sep 15 2009

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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    Franzen, S., Rhodes, C., Cerruti, M., Gerber, R. W., Losego, M., Maria, J. P., & Aspnes, D. E. (2009). Plasmonic phenomena in indium tin oxide and ITO-Au hybrid films. Optics Letters, 34(18), 2867-2869. https://doi.org/10.1364/OL.34.002867