naa a22 4500 51081610X CHVBK 20180411083508.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11468-013-9558-2 doi (NATIONALLICENCE)springer-10.1007/s11468-013-9558-2 Tailoring Absorption in Metal Gratings with Resonant Ultrathin Bridges [Elektronische Daten] [M. Vincenti, D. de Ceglia, M. Grande, A. D'Orazio, M. Scalora] We present a theoretical analysis of the effects of short range surface plasmon polariton excitation on subwavelength bridges in metal gratings. We show that localized resonances in thin metal bridges placed within the slit of a free-standing silver grating dramatically modify transmission spectra and boost absorption regardless of the periodicity of the grating. Additionally, the interference of multiple localized resonances makes it possible to tailor the absorption properties of ultrathin gratings, regardless of the apertures' geometrical size. This tunable, narrow band, enhanced-absorption mechanism triggered by resonant, short-range surface plasmon polaritons may also enhance nonlinear optical processes like harmonic generation, in view of the large third-order susceptibility of metals. Springer Science+Business Media New York, 2013 Surface plasmons nationallicence Gratings nationallicence Optical absorption nationallicence Vincenti M. National Research Council, AMRDEC, Charles M. Bowden Research Laboratory, 35898, Redstone Arsenal, AL, USA aut de Ceglia D. National Research Council, AMRDEC, Charles M. Bowden Research Laboratory, 35898, Redstone Arsenal, AL, USA aut Grande M. Dipartimento di Ingegneria Elettrica e dell'Informazione (DIEI), Politecnico di Bari, Via Re David 200, 70126, Bari, Italy aut D'Orazio A. Dipartimento di Ingegneria Elettrica e dell'Informazione (DIEI), Politecnico di Bari, Via Re David 200, 70126, Bari, Italy aut Scalora M. Charles M. Bowden Research Laboratory, AMRDEC, US Army RDECOM, 35898, Redstone Arsenal, AL, USA aut Plasmonics Springer US; http://www.springer-ny.com 8/3(2013-09-01), 1445-1456 1557-1955 8:3<1445 2013 8 11468 https://doi.org/10.1007/s11468-013-9558-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11468-013-9558-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Vincenti M. National Research Council, AMRDEC, Charles M. Bowden Research Laboratory, 35898, Redstone Arsenal, AL, USA aut NATIONALLICENCE 700 1- de Ceglia D. National Research Council, AMRDEC, Charles M. Bowden Research Laboratory, 35898, Redstone Arsenal, AL, USA aut NATIONALLICENCE 700 1- Grande M. Dipartimento di Ingegneria Elettrica e dell'Informazione (DIEI), Politecnico di Bari, Via Re David 200, 70126, Bari, Italy aut NATIONALLICENCE 700 1- D'Orazio A. Dipartimento di Ingegneria Elettrica e dell'Informazione (DIEI), Politecnico di Bari, Via Re David 200, 70126, Bari, Italy aut NATIONALLICENCE 700 1- Scalora M. Charles M. Bowden Research Laboratory, AMRDEC, US Army RDECOM, 35898, Redstone Arsenal, AL, USA aut NATIONALLICENCE 773 0- Plasmonics Springer US; http://www.springer-ny.com 8/3(2013-09-01), 1445-1456 1557-1955 8:3<1445 2013 8 11468 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer