Fabry-Perot tuning of the band-gap polarity in plasmonic crystals

Jin E. Kihm, Y. C. Yoon, D. J. Park, Y. H. Ahn, C. Ropers, C. Lienau, J. Kim, Q Han Park, D. S. Kim

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Abstract

We report experimental observation of Fabry-Perot resonances and Fabry-Perot-induced band-structure flipping in quasi-one-dimensional plasmonic crystals. Angle-resolved transmission spectra of nanoslit arrays in metal films demonstrate band-gap formation resulting from surface plasmon polariton couplings mediated via nanometer-sized waveguide channels. Tuning the waveguide dielectric function and thickness allows for a pronounced resonant enhancement of the coupling strength and band-gap energy and may even induce changes in sign of the coupling-i.e., an effective band-gap flipping. Our results indicate an interesting route towards band-gap engineering in plasmonic crystals.

Original languageEnglish
Article number035414
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume75
Issue number3
DOIs
Publication statusPublished - 2007 Jan 29

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ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Kihm, J. E., Yoon, Y. C., Park, D. J., Ahn, Y. H., Ropers, C., Lienau, C., Kim, J., Park, Q. H., & Kim, D. S. (2007). Fabry-Perot tuning of the band-gap polarity in plasmonic crystals. Physical Review B - Condensed Matter and Materials Physics, 75(3), [035414]. https://doi.org/10.1103/PhysRevB.75.035414