Výsledky vyhledávání - "Borges Ben-Hur V."

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Correction of aberrations via polarization in single layer metalenses

Autor: Martins, Augusto, Li, Kezheng, Arruda, Guilherme S., Conteduca, Donato, Liang, Haowen, Li, Juntao, Borges, Ben-Hur V., Krauss, Thomas F., Martins, Emiliano R.

Publikováno v: Adv. Optical Mater. 2022, 10, 2102555

The correction of multiple aberrations in an optical system requires different optical elements, which increases its cost and complexity. Metasurfaces hold great promise to providing new functionality for miniaturized and low-cost optical systems. A

Externí odkaz: http://arxiv.org/abs/2205.09253

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Finite Element Time-Domain Body-of-Revolution Maxwell Solver based on Discrete Exterior Calculus

Autor: Na, Dong-Yeop, Borges, Ben-Hur V., Teixeira, Fernando L.

Publikováno v: Journal of Computational Physics, vol. 376, pp. 249-275, 2019

We present a finite-element time-domain (FETD) Maxwell solver for the analysis of body-of-revolution (BOR) geometries based on discrete exterior calculus (DEC) of differential forms and transformation optics (TO) concepts. We explore TO principles to

Externí odkaz: http://arxiv.org/abs/1804.02030

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Axisymmetric Charge-Conservative Electromagnetic Particle Simulation Algorithm on Unstructured Grids: Application to Microwave Vacuum Electronic Devices

Autor: Na, Dong-Yeop, Omelchenko, Yuri A., Moon, Haksu, Borges, Ben-Hur V., Teixeira, Fernando L.

Publikováno v: Journal of Computational Physics, vol. 346, pp. 295-317, 2017

We present a 2.5-dimensional charge-conservative electromagnetic particle-in-cell (EM-PIC) algorithm optimized for the analysis of vacuum electronic devices (VED) with cylindrical symmetry (axisymmetry). We explore the axisymmetry present in the devi

Externí odkaz: http://arxiv.org/abs/1701.03784

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Akademický článek

Fundamental limits and design principles of doublet metalenses

Autor: Martins Augusto, Li Juntao, Borges Ben-Hur V., Krauss Thomas F., Martins Emiliano R.

Publikováno v: Nanophotonics, Vol 11, Iss 6, Pp 1187-1194 (2022)

Metalenses are nanostructured surfaces with great potential for delivering miniaturized and integrated optical systems. A key property of metalenses is that, by using a double layer configuration, or doublet, they can achieve both diffraction-limited

Externí odkaz: https://doaj.org/article/3b542376de4b498ba33f5642cb8e8fd6