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Generalized surface admittance equivalence principle for super-scattering in dielectric particles

Optics Letters, ISSN: 1539-4794, Vol: 48, Issue: 11, Page: 3115-3118
2023
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Metric Options:   Counts1 Year3 Year

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  • Citations
    2
    • Citation Indexes
      2

Article Description

A general formulation for controlling the external scattering coefficients of cylindrical harmonics is presented, generalizing previous results for cloaking of a bare dielectric particle. By inserting a suitable surface admittance at the boundary between a dielectric body and the background region, cylindrical harmonic waves can be enhanced by tailoring the admittance value. Two separate limiting cases for super-scattering features are presented and compared against the same bare particle reference case, providing insights on how to enhance the multi-harmonic scattering pattern. Using this formulation, super-scattering systems can be created, which are suitable for future implementation using active or passive thin metasurfaces.

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