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Diffraction Focusing of Electromagnetic Radiation by Transmission through Sub-Wavelength Nanoapertures

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Abstract

It is shown theoretically, that the phenomenon of radiation focusing in a small region of the near zone inside a dielectric film can present due to electromagnetic wave transmission through sub-wavelength nanoapertures. The confirmation is based on the rigorous theory of plane wave diffraction by a slot in a perfectly conducting screen of finite thickness in the presence of a plane dielectric film on a substrate, which plays the role of a radiation detector.

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Funding

The work is carried out in the framework of the state task and partially supported by the Russian Foundation for Basic Research, grant no. 20-07-01062.

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Authors and Affiliations

  1. Institute of Applied Physical Problems, Belarusian State University, Minsk, Belarus

    V. M. Serdyuk

  2. Kotel’nikov Institute of Radioengineering and Electronics, Russian Academy of Sciences, Moscow, Russia

    S. V. von Gratowski & V. V. Koledov

Authors
  1. V. M. Serdyuk
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  2. S. V. von Gratowski
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  3. V. V. Koledov
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Corresponding authors

Correspondence to V. M. Serdyuk, S. V. von Gratowski or V. V. Koledov.

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The authors declare that they have no conflict of interest.

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Serdyuk, V.M., von Gratowski, S.V. & Koledov, V.V. Diffraction Focusing of Electromagnetic Radiation by Transmission through Sub-Wavelength Nanoapertures. Semiconductors 54, 1814–1815 (2020). https://doi.org/10.1134/S1063782620140250

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  • DOI: https://doi.org/10.1134/S1063782620140250

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