Near-Field Analysis of Bright and Dark Modes on Plasmonic Metasurfaces Showing Extraordinary Suppressed Transmission

Dobmann S, Kriesch A, Ploss D, Peschel U (2014)


Publication Type: Journal article

Publication year: 2014

Journal

Book Volume: 2

Pages Range: 990-999

Journal Issue: 10

DOI: 10.1002/adom.201400237

Abstract

Plasmonic metasurfaces are investigated that consist of a sub-wavelength line pattern in an ultrathin (~10 nm) silver film, designed for extraordinary suppressed transmission (EOST) in the visible spectral range. Measurements with a near-field scanning optical microscope (NSOM) demonstrate that farfield irradiation resonantly excites antenna-like (bright) modes that are localized on the metal ridges. The re-radiation of these modes into the far-field interferes destructively with the transmitted wave, thus suppressing transmission almost completely. In contrast, a second type of mode, bound (dark) surface plasmon polaritons (SPPs) launched from an NSOM tip, propagates well across the metasurface, preferentially perpendicular to the grating lines.

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APA:

Dobmann, S., Kriesch, A., Ploss, D., & Peschel, U. (2014). Near-Field Analysis of Bright and Dark Modes on Plasmonic Metasurfaces Showing Extraordinary Suppressed Transmission. Advanced Optical Materials, 2(10), 990-999. https://dx.doi.org/10.1002/adom.201400237

MLA:

Dobmann, Sabine, et al. "Near-Field Analysis of Bright and Dark Modes on Plasmonic Metasurfaces Showing Extraordinary Suppressed Transmission." Advanced Optical Materials 2.10 (2014): 990-999.

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