Paper
28 September 2015 Enhanced Terahertz transmission through 3D non-spherical terajets
Alice L. S. Cruz, Cristiano M. B. Cordeiro, Marcos A. R. Franco
Author Affiliations +
Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 963412 (2015) https://doi.org/10.1117/12.2195279
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
In this paper we demonstrate the capability of non-spherical dielectric objects to generate terajets ‒ similar to the photonic nanojets ‒ at Terahertz frequencies. We investigated numerically three geometries with non-usual shape and compared them with a common dielectric sphere. The focusing terajet performance was evaluated and one of the proposed geometry shown an enhancement power ~32 times with respect to the incident wave power. Using harmonic frequencies to excite the geometries, the power enhancement can achieve an intensity of ~64 times.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alice L. S. Cruz, Cristiano M. B. Cordeiro, and Marcos A. R. Franco "Enhanced Terahertz transmission through 3D non-spherical terajets", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963412 (28 September 2015); https://doi.org/10.1117/12.2195279
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KEYWORDS
Terahertz radiation

Dielectrics

Photonic nanostructures

Optical spheres

Microscopy

3D modeling

Surface plasmons

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