Surface-plasmon bandgaps observed in the diffuse background of metallic gratings

Ricardo A. Depine; Silvia A. Ledesma

doi:10.1117/12.590681

21 October 2004 Surface-plasmon bandgaps observed in the diffuse background of metallic gratings

Ricardo A. Depine, Silvia A. Ledesma

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.590681
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

Abstract

Due to the excitation of surface plasmons, the diffuse background of a microrough metallic grating can present intensity maxima called diffuse light bands. We reexamine this phenomenon within the framework of recent studies on photonic surfaces and show that it provides an experimental technique for mapping the dispersion relation of surface plasmons, including the gap that, under appropriate circumstances, opens up in the reciprocal grating space.

Citation Download Citation

Ricardo A. Depine and Silvia A. Ledesma "Surface-plasmon bandgaps observed in the diffuse background of metallic gratings", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.590681

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