Publication:
Localized photonic jets from flat, three-dimensional dielectric cuboids in reflection mode

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Date

2015

Authors

Director

Publisher

Optical Society of America
Acceso abierto / Sarbide irekia
Artículo / Artikulua
Versión aceptada / Onetsi den bertsioa

Project identifier

MICINN//TEC2011-28664-C02-01/ES/

Abstract

A photonic jet (a terajet at terahertz frequencies) commonly denotes a specific, spatially localized region in the near field on the front side of a dielectric particle with a diameter comparable with the wavelength illuminated by a plane wave on its back side (i.e., the jet emerges from the shadow surface of a dielectric particle). In this Letter, the formation of a photonic jet is demonstrated using the recently proposed three-dimensional (3D) dielectric cuboids working in the “reflection” mode when the specific, spatially localized region is localized in the direction of the incident wavefront. The results of the simulations based on the Finite Integration Technique are discussed. All dimensions are given in wavelength units so that all results can be scaled to any frequency of interest, including optical frequencies, thus simplifying the fabrication process compared with spherical dielectrics. The results presented here may be of interest for novel applications, including microscopy techniques and sensors.

Keywords

Terajets, Photonic nanojets, Dielectric cuboids

Department

Ingeniería Eléctrica y Electrónica / Ingeniaritza Elektrikoa eta Elektronikoa

Faculty/School

Degree

Doctorate program

Editor version

Funding entities

This work was supported in part by the Spanish Government under contract TEC2011-28664-C02-01. V. P.-P. is sponsored by Spanish Ministerio de Educación, Cultura y Deporte under grant FPU AP-2012-3796. M. B. is sponsored by the Spanish Government via RYC- 2011-08221.

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