D’Aguanno, G.Mattiucci, N.Alù, A.Bloemer, M. J.2020-05-292020-05-292011-01-27G. D’Aguanno et al., Quenched optical transmission in ultrathin subwavelength plasmonic gratings, Phys. Rev. B Vol. 83, Iss. 3 (2011), https://doi-org/10.1103/PhysRevB.83.035426https://doi.org/10.1103/PhysRevB.83.035426http://hdl.handle.net/11603/18788We discuss the optical properties of one-dimensional ultrathin subwavelength, metallic gratings under transverse magnetic excitation, with particular attention to the phenomenon of quenched transmission, recently highlighted in several optical experiments. In particular, we consider a grating with thickness comparable to or less than the metal skin depth, showing how the geometrical properties of the grating can dramatically modify its transmission properties, often in a counterintuitive way. We study the role played by short-range and long-range surface plasmons (SPs) and localized SP resonances, showing that quenched transmission must be ascribed to localized resonance effects, while long-range and short-range SPs play only a marginal role in this anomalous effect.11 pagesen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Public Domain Mark 1.0This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.Text