000074970 001__ 74970 000074970 005__ 20200217133054.0 000074970 0247_ $$2doi$$a10.1103/PhysRevB.98.041407 000074970 0248_ $$2sideral$$a107617 000074970 037__ $$aART-2018-107617 000074970 041__ $$aeng 000074970 100__ $$0(orcid)0000-0001-6575-168X$$aGutierrez Rodrigo, S. 000074970 245__ $$aAll-optical control of surface plasmons by second-harmonic generation 000074970 260__ $$c2018 000074970 5060_ $$aAccess copy available to the general public$$fUnrestricted 000074970 5203_ $$aAll-optical control of surface plasmon polaritons (SPPs) is theoretically demonstrated in arrays of metallic slits. It is shown how the mixing of electromagnetic fields scattered by the slits from a weak beam at ¿ wavelength, with second-harmonic fields generated by a high-intensity 2¿ beam, creates a destructive interference of surface plasmons in one of the two possible directions of emission from the slits, while these are enhanced along the opposite direction. Our method enables spectrally broadband excitation and thus unidirectional launching of SPP pulses as short as ~20 fs, all-optically controlled. Based on these findings, an ultranarrow bandwidth surface plasmon frequency comb is designed. 000074970 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/MAT2017-88358-C3-2-R 000074970 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/ 000074970 592__ $$a1.502$$b2018 000074970 593__ $$aElectronic, Optical and Magnetic Materials$$c2018$$dQ1 000074970 593__ $$aCondensed Matter Physics$$c2018$$dQ1 000074970 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000074970 773__ $$g98, 4 (2018), 041407(R)[5 pp]$$pPhys. Rev. B$$tPhysical Review B$$x2469-9950 000074970 8564_ $$s1226068$$uhttps://zaguan.unizar.es/record/74970/files/texto_completo.pdf$$yVersión publicada 000074970 8564_ $$s19900$$uhttps://zaguan.unizar.es/record/74970/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000074970 909CO $$ooai:zaguan.unizar.es:74970$$particulos$$pdriver 000074970 951__ $$a2020-02-17-12:43:44 000074970 980__ $$aARTICLE