Ben-Hur Viana Borges

• Abstract

  The continuous increase of the complexity of current electromagnetic devices, observed particularly since the advent of metamaterials (and of its bidimensional counterpart, known as metasurfaces) is due, in essence, to the advances of the fabrication processes (including fast prototyping), and to the modern and more comprehensive numerical simulation tools. Unfortunately, the Metamaterial…

  Electromagnetic wave propagation through complex structures, AP.R

• Abstract

  The objective of the present collaborative research proposal is to perform the design, analysis, fabrication, and characterization of two classes of new metamaterial-based devices for radio-frequency. (RF)/microwave and optical applications, with unprecedented performance. In the RF/microwave regime, a previous transient (time-domain) analysis (carried out by this group) of microwave puls…

  Novel metamaterials for rf/microwave and optical applications, AP.R

• Abstract

  This project aims at strengthening the cooperation between the Electrical Engineering Department (SEL-EESC-USP) and the National Institute of Optics and Photonics (INOF) located at the Institute of Physics of São Carlos (IFSC). This collaboration is already very fruitful since INOF has been established, and it will require from now on, bolder steps towards incrementing the ongoing researc…

  Generation of surface plasmon-polaritons in nano-structures for waveguiding and plasmonic metamaterials applications, AV.BR

(Only some records are available in English at this moment)

• Abstract

  Hyperbolic metamaterials (HMs) constitute a new class of artificially produced materials (or metamaterials) intended to obtain hyperbolic shaped dispersion surface profiles. Consequently, these materials allow the propagation of waves whose wavevectors (k) are much higher than the vacuum wavenumber (k0), which is impractical with conventional materials. Besides increasing the density of p…

  Nano-patterned hyperbolic metamaterials for telecommunications and sensing applications, BP.PD

• Abstract

  This scientific initiation project has the purpose to manufacture metasurfaces (metamaterials) for the visible region of the spectrum using ion beam lithography (from a FIB FEI Quanta 3D) on Silver and Gold film surfaces on glass substrates. The characterization of the structures will be performed by measuring the extraordinary transmission spectrum using an optical microscope coupled to …

  Fabrication of optical metasurfaces by focused ion beam (fib), BP.IC

• Abstract

  The goal of this PhD research proposal is to design, model, fabricate, and characterize metamaterials (in their state-of-the-art) capable of controlling the propagation of light beams with low insertion losses for diffractive optics applications, particularly binary phase holograms. More specifically, this research will focus on plasmonic diffractive optics for the design of distributed n…

  Design, fabrication and characterization of metasurfaces for diffractive optics applications, BP.DD

(Only some records are available in English at this moment)

• Abstract

  The goal of this PhD exchange proposal is to design, fabricate and characterize state-of-the-art aberration-free metalenses dedicated to the miniaturization of diffractive optical components and systems. This initiative is a natural step for the candidate research activities, given the importance of his recent achievements on metasurface designs for holography applications. In addition, t…

  Design, fabrication and characterization of aberration-free metalenses for integrated optics applications, BE.EP.DD