RT Journal Article
T1 Control of the Light Interaction in a Semiconductor Nanoparticle Dimer Through Scattering Directionality
A1 Vergaz Benito, Ricardo
A1 Algorri Genaro, José Francisco
A1 Cuadrado, A.
A1 Sánchez Pena, José Manuel
A1 García Cámara, Braulio
AB Dimers of nanoparticles are very interesting for several devices due to the possibility of obtaining intense light concentrations in the gap between them. A dynamic control of this interaction to obtain either the maximum or minimum light through interferential effects could be also relevant for a multitude of devices such as chemical sensors or all-optical devices for interchip/intrachip communications. Semiconductor nanoparticles satisfying Kerker conditions present an anisotropic scattering distribution with a minimum in either the forward or the backward direction and prominent scattering in the contrary direction. The reduction or enhancement of the electromagnetic field in a certain direction can minimize or maximize the interaction with neighboring nanoparticles. In this paper, we consider a dimer of nanoparticles such that each component satisfies each one of the Kerker conditions. Depending on the arrangement of the nanoparticles with respect to the impinging light direction, we can produce a minimum or a maximum of the electric field between them, reducing or maximizing the interferential effects. The strong dependence of the directional conditions with external conditions, such as the incident wavelength, can be used to dynamically control the light concentration in the gap.
PB IEEE
SN 1943-0655
YR 2016
FD 2016-06-01
LK https://hdl.handle.net/10016/35410
UL https://hdl.handle.net/10016/35410
LA eng
NO This work was supported in part by the Ministerio de Economía y Competitividad of Spain under Grant TEC2013-50138-EXP and Grant TEC2013-47342-C2-2-R, by the RD Program of the Comunidad de Madrid under Grant SINFOTON S2013/MIT-2790, and by COST Action IC1208
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RD 27 jul. 2024