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Electromagnetic jet produced with loaded waveguide ended by an optimized multi-rectangular sections tip

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Listed:
  • Hishem Hyani
  • Bruno Sauviac
  • Gérard Granet
  • Bernard Bayard
  • Stéphane Robert
  • Kofi Edee

Abstract

Previous works have demonstrated that a parallel plate waveguide, equipped at the end with a tip, can be used to initiate an “electromagnetic jet (Ej)” (this name generalizes the photonic jet (Pj) phenomenon regardless of the wavelength). In addition to being easy to manufacture, a rectangular shape improves energy concentration, however concurrently the full-width at half maximum (FWHM) is slightly degraded. This article aims to introduce tips with multi-rectangular sections reducing the drawbacks previously mentioned. This article proposes the use of Aperiodic Polynomial Modal Method (A-PMM) as an efficient yet robust method to model and optimize an outgoing Ej, equipped with this kind of dielectric tips. Thus, a three rectangular sections tip can improve energy concentration and can reduce the FWHM beyond the diffraction limit compared to a single section tip.

Suggested Citation

  • Hishem Hyani & Bruno Sauviac & Gérard Granet & Bernard Bayard & Stéphane Robert & Kofi Edee, 2023. "Electromagnetic jet produced with loaded waveguide ended by an optimized multi-rectangular sections tip," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 37(18), pages 1587-1596, December.
    • Handle: RePEc:taf:tewaxx:v:37:y:2023:i:18:p:1587-1596
    DOI: 10.1080/09205071.2023.2262984
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