García Cámara, BraulioAlgorri Genaro, José FranciscoCuadrado Conde, AlexanderUrruchi del Pozo, VirginiaSánchez Pena, José ManuelSerna, RosalíaVergaz Benito, Ricardo2023-02-272023-02-272015-08-20The Journal of Physical Chemistry C, (2015), 119(33), 19558-19564.1932-7447https://hdl.handle.net/10016/36683A structure based on a dimer of silicon nanoparticles, presenting directional scattering in the visible range, was studied as a new design of an all-optical switch. The combination of spherical nanoparticles satisfying, at the same incident wavelength, the zero-backward and the minimum-forward scattering conditions can produce either a maximum or a minimum of the scattered field in the area between the nanoparticles. The modulation of the incident wavelength can be used as a switching parameter due to the sensitivity of these conditions to it. An optimization of the dimer setup, both in the distance between the nanoparticles and the incident wavelength, was numerically performed to obtain a maximum contrast. Also, near-field and far-field distributions of the electric field have been considered.6eng© 2015 American Chemical SocietyNanoparticlesSemiconductorScatteringDirectionalityMetadevicesresearch articleElectrónicahttps://doi.org/10.1021/acs.jpcc.5b06302open access195583319564Journal of Physical Chemistry C119AR/0000017195