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All-optical nanometric switch based on the directional scattering of semiconductor nanoparticles

Abstract: A 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.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Journal of Physical Chemistry C, 2015, 119(33), 19558-19564

Editorial: American Chemical Society

 Fecha de publicación: 20/08/2015

Nº de páginas: 7

Tipo de publicación: Artículo de Revista

 DOI: 10.1021/acs.jpcc.5b06302

ISSN: 1932-7447,1932-7455

Proyecto español: TEC2013-47342-C2-2-R

Url de la publicación: https://doi.org/10.1021/acs.jpcc.5b06302

Autores/as

BRAULIO GARCIA CAMARA

CUADRADO CONDE, ALEXANDER

URRUCHI DEL POZO, VIRGINIA

JOSE MANUEL SANCHEZ PENA

SERNA GALÁN, ROSALÍA

VERGAZ BENITO, RICARDO