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Electrodynamic Models of a Lens Formed by a Photonic Crystal of Hollow Metal Cylinders.

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Title: Electrodynamic Models of a Lens Formed by a Photonic Crystal of Hollow Metal Cylinders.
Authors: Lerer, A. M.1 (AUTHOR) lerer@sfedu.ru, Donets, I. V.1 (AUTHOR), Tsvetkovskaya, S. M.2 (AUTHOR), Danelyan, M.1 (AUTHOR)
Source: Radiophysics & Quantum Electronics. Jul2025, Vol. 68 Issue 2, p141-149. 9p.
Subjects: Photonic crystals, Electromagnetic wave diffraction, Magnetic permeability, Dielectric properties of metamaterials, Mathematical models, Permittivity
Abstract: We study diffraction of an elctromagnetic wave by a cylinder made of an artificial magnetodielectric, which is a photonic crystal consisting of hollow metal cylinders. The problem is solved using two developed mathematical models of the device under study. New algorithms and software have been created. In the first model, equivalent anisotropic dielectric permittivity and magnetic permeability are introduced based on the calculation of a three-dimensional photonic crystal. The near field of a cylindrical magnetodielectric lens with these parameters is studied. In the second model, the problem of diffraction on a large (several thousand) number of metal cylinders is solved. This solution is used for calculating a real cylindrical lens. A comparison of the results obtained within the framework of these two models shows that the accuracy of calculation of focusing devices made of photonic crystals is sufficient for practice. [ABSTRACT FROM AUTHOR]
Copyright of Radiophysics & Quantum Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: We study diffraction of an elctromagnetic wave by a cylinder made of an artificial magnetodielectric, which is a photonic crystal consisting of hollow metal cylinders. The problem is solved using two developed mathematical models of the device under study. New algorithms and software have been created. In the first model, equivalent anisotropic dielectric permittivity and magnetic permeability are introduced based on the calculation of a three-dimensional photonic crystal. The near field of a cylindrical magnetodielectric lens with these parameters is studied. In the second model, the problem of diffraction on a large (several thousand) number of metal cylinders is solved. This solution is used for calculating a real cylindrical lens. A comparison of the results obtained within the framework of these two models shows that the accuracy of calculation of focusing devices made of photonic crystals is sufficient for practice. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Radiophysics & Quantum Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1007/s11141-026-10446-2
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        Text: English
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        Type: general
      – SubjectFull: Electromagnetic wave diffraction
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      – SubjectFull: Magnetic permeability
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      – SubjectFull: Dielectric properties of metamaterials
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              Text: Jul2025
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