Comment on “Sliding planar conjoined cut-wire-pairs: A novel approach for splitting and controlling the absorption spectra” [J. Appl. Phys. 124, 105103 (2018)]
In a recent article, Al-Badri et al. [J. Appl. Phys. 124, 105103 (2018)] proposed a new method to split a single perfect absorption peak into two separate absorption spectra by using vertical sliding of conjoined cut-wire-pairs (CCWPs).The highest tuning of absorption bands are reported at frequenci...
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Veröffentlicht in: | Journal of applied physics 2020-09, Vol.128 (12) |
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Hauptverfasser: | , |
Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | In a recent article, Al-Badri et al. [J. Appl. Phys. 124, 105103 (2018)] proposed a new method to split a single perfect absorption peak into two separate absorption spectra by using vertical sliding of conjoined cut-wire-pairs (CCWPs).The highest tuning of absorption bands are reported at frequencies 3.242 GHz and 3.640 GHz with absorptivity of about 90%. This comment expresses some concerns about the simulation environment and absorption characteristics of such an approach. Moreover, it is shown that the actual absorption peak is around 40% while simulated with periodic boundary conditions. |
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ISSN: | 0021-8979 1089-7550 |
DOI: | 10.1063/5.0013984 |