Terajets produced by dielectric cuboids

V. Pacheco-Peña, M. Beruete, I. V. Minin, Oleg V. Minin

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

The capability of generating terajets using three-dimensional (3D) dielectric cuboids working at terahertz (THZ) frequencies (as analogues of nanojets in the infrared band) is introduced and studied numerically. The focusing performance of the terajets is evaluated in terms of the transversal full width at half maximum (FWHM) along x- and y-directions using different refractive indices for a 3D dielectric cuboid with a fixed geometry, obtaining a quasi-symmetric terajet with a subwavelength resolution of ∼0. 46λ0 when the refractive index is n = 1.41. Moreover, the backscattering enhancement produced when metal particles are introduced in the terajet region is demonstrated for a 3D dielectric cuboid and compared with its two-dimensional (2D) counterpart. The results of the jet generated for the 3D case are experimentally validated at sub-THZ waves, demonstrating the ability to produce terajets using 3D cuboids.

Original languageEnglish
Article number084102
JournalApplied Physics Letters
Volume105
Issue number8
DOIs
Publication statusPublished - 25 Aug 2014
Externally publishedYes

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refractivity
metal particles
backscattering
analogs
augmentation
geometry

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Pacheco-Peña, V., Beruete, M., Minin, I. V., & Minin, O. V. (2014). Terajets produced by dielectric cuboids. Applied Physics Letters, 105(8), [084102]. https://doi.org/10.1063/1.4894243

Terajets produced by dielectric cuboids. / Pacheco-Peña, V.; Beruete, M.; Minin, I. V.; Minin, Oleg V.

In: Applied Physics Letters, Vol. 105, No. 8, 084102, 25.08.2014.

Research output: Contribution to journalArticle

Pacheco-Peña, V, Beruete, M, Minin, IV & Minin, OV 2014, 'Terajets produced by dielectric cuboids', Applied Physics Letters, vol. 105, no. 8, 084102. https://doi.org/10.1063/1.4894243
Pacheco-Peña V, Beruete M, Minin IV, Minin OV. Terajets produced by dielectric cuboids. Applied Physics Letters. 2014 Aug 25;105(8). 084102. https://doi.org/10.1063/1.4894243
Pacheco-Peña, V. ; Beruete, M. ; Minin, I. V. ; Minin, Oleg V. / Terajets produced by dielectric cuboids. In: Applied Physics Letters. 2014 ; Vol. 105, No. 8.
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