RT Journal Article
T1 Optimized Minimum-Forward Light Scattering by Dielectric Nanopillars
A1 Algorri Genaro, José Francisco
A1 García Cámara, Braulio
A1 Cuadrado Conde, Alexander
A1 Sánchez Pena, José Manuel
A1 Vergaz Benito, Ricardo
AB In this letter, silicon nanopillars (NPs) with an optimum aspect ratio are analyzed, in such a way that the overlapping of the electric and magnetic dipolar resonances provides a remarkable minimum forward (MF) scattering. This ideal shape is also related with the incident wavelength and the refractive index of the surrounding medium. We work in the frame of numerical simulations based on Maxwell equations solved by the finite-element method. When the aspect ratio implies an NP, a linear behavior for the MF condition is observed. An upper limit of the aspect ratio has been found to satisfy the MF condition. This aspect ratio is determinant in order to scale these systems with wavelength. A larger efficiency at the directional conditions is also shown with respect to silicon nanodisks. These results are promising for design and create novel CMOS integrated flat optical devices.
PB IEEE
SN 1041-1135
YR 2016
FD 2016-08-30
LK https://hdl.handle.net/10016/35604
UL https://hdl.handle.net/10016/35604
LA eng
NO This work was supported in part by the Comunidad de Madrid through the Research and Development Program SINFOTON underGrant S2013/MIT-2790 and in part by the Ministerio de Economía y Competitividad of Spain under Grant TEC2013-47342-C2-2-R andGrant TEC2013-50138-EXP.
DS e-Archivo
RD 27 jul. 2024