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Strong electromagnetic field localization near the surface of hemicylindrical particles

  • Ibrahim Mahariq
  • Ibrahim H. Giden
  • Hamza Kurt
  • Oleg V. Minin
  • Igor V. Minin
Article
  • 138 Downloads

Abstract

We theoretically study the forward and backward plane wave illuminations of hemicylindrical dielectric particles with different radii and refractive indices. Near field effects providing strong field enhancement and narrow beam width are obtained from hemicylindrical particles, which can be associated with whispering gallery modes (WGMs) and photonic nano-jets (PNJs). It should be noted that existence of PNJ and WGM effects depending on forward/backward light illuminations is studied for the first time in all-dielectric hemicylindrical particles. Compared to dielectric cylinders, hemicylindrical aided PNJs show relatively small influences of WGM regime, when exists, to PNJ behavior. Under the backward excitation, on the other hand, typical nano-jet is produced. The designed hemicylindrical structure could be implemented in high-resolution optical imaging and sensing applications.

Keywords

Subwavelength structures Whispering gallery modes Photonic nano-jets Super-resolution Laser beam shaping 

Notes

Acknowledgements

Hamza Kurt acknowledges the support of Turkish Academy of Sciences, Oleg V. Minin acknowledges the partial support by Mendeleev Scientific Fund of Tomsk State University, Project 8.2.08.2017.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  • Ibrahim Mahariq
    • 1
    • 2
  • Ibrahim H. Giden
    • 2
  • Hamza Kurt
    • 2
  • Oleg V. Minin
    • 3
  • Igor V. Minin
    • 3
  1. 1.Department of Electrical and Electronics EngineeringUniversity of Turkish Aeronautical AssociationAnkaraTurkey
  2. 2.Department of Electrical and Electronics EngineeringTOBB University of Economics and TechnologyAnkaraTurkey
  3. 3.National Research Tomsk State UniversityTomskRussia

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